Catalyst 2960 Switch Hardware
Installation Guide
February 2008
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO
CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS
MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY
PRODUCTS.
Americas Headquarters
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170 West Tasman Drive
San Jose, CA 95134-1706
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Tel: 408 526-4000
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Fax: 408 527-0883
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Contents
Warnings 2-2
Rack-Mounting 2-8
Wall-Mounting 2-12
Warnings 3-1
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Contents
Rack-Mounting 3-15
Troubleshooting 4-1
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Contents
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Preface
Audience
Purpose
This guide is for the networking or computer technician responsible for installing the
Catalyst 2960 switch, hereafter known as the switch. We assume that you are familiar with the concepts
and terminology of Ethernet and local area networking. If you are interested in more training and
education in these areas, learning opportunities including training courses, self-study options, seminars,
and career certifications programs are available on the Cisco Training & Events web page:
http://www.cisco.com/web/learning/index.html
This guide describes the hardware features of the Catalyst 2960 switch. It describes the physical and
performance characteristics of the switch, explains how to install it, and provides troubleshooting
information.
This guide does not describe system messages that you might receive or how to configure your switch.
For more information, see the switch software configuration guide, the switch command reference, and
the switch system message guide on the Cisco.com Product Documentation home page. For information
about the standard Cisco IOS Release 12.1 or 12.2 commands, see the Cisco IOS documentation set from
the Cisco.com home page by choosing Support > Documentation > Product and Support
Documentation/Cisco IOS Software.
Conventions
This document uses these conventions and symbols for notes, cautions, and warnings:
Note
Means reader take note. Notes contain helpful suggestions or references to materials not contained in
this manual.
Caution
Means reader be careful. In this situation, you might do something that could result in equipment
damage or loss of data.
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Preface
Warning
IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar
with standard practices for preventing accidents. Use the statement number provided at the end of
each warning to locate its translation in the translated safety warnings that accompanied this
device. Statement 1071
SAVE THESE INSTRUCTIONS
The safety warnings for this product are translated into several languages in the Regulatory Compliance
and Safety Information for the Catalyst 2960 Switch that ships with the product. The EMC regulatory
statements are also included in that guide.
Related Documentation
These documents provide complete information about the switch and are available from this
Cisco.com site:
•
Release Notes for the Catalyst 3750, 3560, 2970, and 2960 Switches
Note
Before installing, configuring, or upgrading the switch, refer to the release notes on
Cisco.com for the latest information.
•
•
•
•
•
•
•
Catalyst 2960 Switch Software Configuration Guide
Catalyst 2960 Switch Command Reference
Catalyst 3750, 3560, 3550, 2970, and 2960 Switch System Message Guide
Device manager online help (available on the switch)
Cisco Network Assistant online help (available on the switch)
Catalyst 2960 Switches Getting Started Guide (8-Port Switches)
Catalyst 2960 Switch Getting Started Guide. This guide is for the 24- and 48-port switches and
provides information in these languages: English, Chinese (Simplified), French, German, Italian,
Japanese, and Spanish
•
Regulatory Compliance and Safety Information for the Catalyst 2960 Switch
For information about related products, see these documents:
•
•
•
•
Getting Started with Cisco Network Assistant (not orderable but available on Cisco.com)
Release Notes for Cisco Network Assistant (not orderable but available on Cisco.com)
Cisco Small Form-Factor Pluggable Modules Installation Notes (order number DOC-7815160=)
Cisco CWDM GBIC and CWDM SFP Installation Note (not orderable but available on Cisco.com)
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Preface
•
•
Cisco Redundant Power System 2300 Hardware Installation Guide (order number DOC-7817647=)
Cisco RPS 675 Redundant Power System Hardware Installation Guide (order number
DOC-7817647=)
These compatibility matrix documents are available from this Cisco.com site:
•
•
•
•
•
•
Cisco Gigabit Ethernet Transceiver Modules Compatibility Matrix
Cisco 100-Megabit Ethernet SFP Modules Compatibility Matrix
Cisco CWDM SFP Transceiver Compatibility Matrix
Cisco Small Form-Factor Pluggable Modules Compatibility Matrix
Compatibility Matrix for 1000BASE-T Small Form-Factor Pluggable Modules
Cisco Redundant Power System 2300 Compatibility Matrix
Obtaining Documentation, Obtaining Support, and Security
Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback,
security guidelines, and also recommended aliases and general Cisco documents, see the monthly
What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical
documentation, at this URL:
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Preface
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C H A P T E R
1
Product Overview
The Catalyst 2960 switch—also referred to as the switch—is an Ethernet switch to which you can
connect devices such as workstations, Cisco Wireless Access Points, Cisco IP Phones, and other network
devices including servers, routers, and other switches. This chapter provides a functional overview of
the Catalyst 2960 switch. These topics are included:
•
•
•
•
Features
You can deploy the 24- and 48-port Catalyst 2960 switches as backbone switches, aggregating
10BASE-T, 100BASE-TX, and 1000BASE-T Ethernet traffic from other network devices. The 8-port
Catalyst 2960 compact switches provide the same Ethernet connectivity, but you can deploy these
switches outside of the traditional wiring closet environment, such as in office workspaces and
classrooms. See the switch software configuration guide for deployment examples.
Table 1-1 describes the switch model features.
Table 1-1
Catalyst 2960 Switch Model Descriptions
Supported
Software Image Description
Switch Model
Catalyst 2960-24-S
LAN-Lite
LAN-Lite
24 10/100BASE-TX Ethernet ports (no RPS port or small form-factor
pluggable [SFP] module slot)
Catalyst 2960-24TC-S
24 10/100BASE-TX Ethernet ports and 2 dual-purpose ports
(2 10/100/1000BASE-T copper ports and 2 SFP module slots);
(no RPS port)
Catalyst 2960-48TC-S
Catalyst 2960-24PC-L
LAN-Lite
LAN-Base
48 10/100BASE-TX Ethernet ports and 2 dual-purpose ports (no RPS port)
24 10/100BASE-TX Power over Ethernet (PoE) ports and 2 dual-purpose
ports
Catalyst 2960-24LT-L
LAN-Base
24 10/100BASE-TX ports, 8 of which are PoE, and 2 10/100/1000 ports (no
SFP module slot)
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Chapter 1 Product Overview
Features
Table 1-1
Catalyst 2960 Switch Model Descriptions (continued)
Supported
Software Image Description
Switch Model
Catalyst 2960-24TT-L
Catalyst 2960-48TT-L
Catalyst 2960PD-8TT-L
Catalyst 2960-8TC-L
Catalyst 2960G-8TC-L
LAN-Base
LAN-Base
LAN-Base
LAN-Base
LAN-Base
24 10/100BASE-TX Ethernet ports and 2 10/100/1000BASE-T copper
uplink ports (no SFP module slot)
48 10/100BASE-TX Ethernet ports and 2 10/100/1000BASE-T copper
uplink ports (no SFP module slot)
8 10/100BASE-TX Ethernet ports and 1 10/100/1000 port that receives
power (no fan, RPS port, or SFP module slot)
8 10/100BASE-TX Ethernet ports and 1 dual-purpose port (no fan or
RPS port)
7 10/100/100BASE-TX Ethernet ports and 1 dual-purpose port (no fan or
RPS port)
Catalyst 2960-24TC-L
Catalyst 2960-48TC-L
Catalyst 2960G-24TC-L
Catalyst 2960G-48TC-L
LAN-Base
LAN-Base
LAN-Base
LAN-Base
24 10/100BASE-TX Ethernet ports and 2 dual-purpose ports
48 10/100BASE-TX Ethernet ports and 2 dual-purpose ports
20 10/100/1000BASE-T Ethernet ports and 4 dual-purpose ports
44 10/100/1000BASE-T Ethernet ports and 4 dual-purpose ports
The Catalyst 2960-8TC-L, Catalyst 2960G-8TC-L, and Catalyst 2960PD-8TT-L switches are smaller
than the other Catalyst 2960 switches. They can be mounted with a magnet, have security lock slots, and
The Catalyst 2960-24PC-L and Catalyst 2960-24LT-L PoE switches comply with Cisco prestandard PoE
and IEEE 802.3af.
The switches support these SFP modules:
•
•
•
•
•
•
•
•
•
1000BASE-CWDM
1000BASE-BX
1000BASE-LX/LH
1000BASE-SX
1000BASE-T
1000BASE-ZX
100BASE-BX
100BASE-FX
100BASE-LX
The Catalyst 2960-24TC-S and Catalyst 2960-48TC-S switches support only 1000BASE-LX/LH,
1000BASE-SX, and 100BASE-FX SFP modules.
For specific information about which SFP modules are supported on specific switches, see the Cisco
Gigabit Ethernet Transceiver Modules Compatibility Matrix at this Cisco.com URL:
http://www.cisco.com/en/US/docs/interfaces_modules/transceiver_modules/compatibility/matrix/
OL_6981.html
The 1000BASE-T SFP modules can operate at 10, 100, or 1000 Mb/s in full-duplex mode or at
10 or 100 Mb/s in half-duplex mode when you install them in Catalyst 2960 switches. The 10/100 and
10/100/1000 ports autonegotiate speed and support full-duplex or half-duplex mode.
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Chapter 1 Product Overview
Front Panel Description
The Catalyst 2960-8TC-L and Catalyst 2960G-8TC-L switches do not support the 1000BASE-T or
GLC-GE-100FX SFP modules.
Some Catalyst 2960 switches have a redundant power system (RPS) connector for an optional
Cisco RPS 2300 or Cisco RPS 675 redundant power system that operates on AC input and supplies
backup DC power to the switch. See the compatibility matrix documents for the RPS systems on
Cisco.com for more information about switch support for the RPS models.
These models do not have an RPS connector:
•
•
•
•
•
•
Catalyst 2960-8TC-L
Catalyst 2960G-8TC-L
Catalyst 2960PD-8TT-L
Catalyst 2960-24-S
Catalyst 2960-24TC-S
Catalyst 2960-48TC-S
Front Panel Description
These sections describe the switch front panels:
•
•
•
•
•
•
•
•
•
•
Catalyst 2960 Switch 24- and 48-Port Switches
These sections describe the Catalyst 2960 24- and 48-port switches:
•
•
•
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Chapter 1 Product Overview
Front Panel Description
Catalyst 2960-24-S, 2960-24TC-S, and 2960-48TC-S Switches
The 10/100 ports on the Catalyst 2960-24-S switch are numbered as follows: The first member of the
pair (port 1) is above the second member (port 2), port 3 is above port 4, and so on. See Figure 1-1.
Figure 1-1
Catalyst 2960-24-S Switch Front Panel
Catalyst 2960 Series SI
SYST
STAT
DUPLX
SPEED
MODE
1
1
10/100 ports
The 10/100 ports on the Catalyst 2960-24TC-S and Catalyst 2960-48TC-S switches are numbered in the
same way as the Catalyst 2960-24T-S switch. These switches have dual-purpose ports, that is,
10/100/1000 ports 1 and 2 can use either the SFP module or the RJ-45 connector for that port, but not
both at the same time. Use the software to set the connector type for these ports. For more information
Figure 1-2
Catalyst 2960-24TC-S Switch Front Panel
Catalyst 2960 Series SI
SYST
STAT
DUPLX
SPEED
MODE
1
2
1
10/100 ports 2 Dual-purpose ports
Figure 1-3
Catalyst 2960-48TC-S Switch Front Panel
Catalyst 2960 Series SI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
3
9
4
0
41
42
4
3
4
4
45
46
47
48
SYST
STAT
DUPLX
SPEED
MODE
1
2
1
10/100 ports 2 Dual-purpose ports
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Chapter 1 Product Overview
Front Panel Description
Catalyst 2960-24PC-L 2960-24TC-L, 2960-48TC-L, 2960 -24LT-L, 2960-24TT-L, and
2960-48TT-L Switches
The 10/100 ports on the Catalyst 2960-24PC-L, 2960-24TC-L, 2960-48TC-L, 2960-24LT-L,
2960-24TT-L, and 2960-48TT-L switches are grouped in pairs. The first member of the pair (port 1) is
above the second member (port 2), port 3 is above port 4, and so on.
Figure 1-4
Catalyst 2960-24PC-L Switch Front Panel
Catalyst 2960 Series PoE-24
1
2
3
4
5
6
7
8
9
10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
1X
11X
13X
23X
SYST
RPS
STAT
DUPLX
SPEED
PoE
1
2
2X
12X
14X
24X
MODE
POWER
OVER ETHERNET
1
2
1
10/100 PoE ports
2
Dual-purpose ports
The Catalyst 2960-24TC-L and Catalyst 2960-48TC-L switches have dual-purpose ports, that is,
10/100/1000 ports 1 and 2 can use either the SFP module or the RJ-45 connector for that port, but not
both. Use the software to set the connector type for these ports. For more information about the
Figure 1-5
Catalyst 2960-24TC-L Switch Front Panel
SYST
RPS
STAT
DUPLX
SPEED
MODE
1
2
1
10/100 ports 2 Dual-purpose ports
Figure 1-6
Catalyst 2960-48TC-L Switch Front Panel
SYST
RPS
STAT
DUPLX
SPEED
MODE
1
2
1
10/100 ports 2 Dual-purpose ports
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Chapter 1 Product Overview
Front Panel Description
The Catalyst 2960-24LT-L, Catalyst 2960-24TT-L, and Catalyst 2960-48TT-L switches have two
10/100/1000 uplink ports, numbered 1 and 2. Ports 1 to 8 on the Catalyst 2960-24LT-L switch are
Figure 1-7
Catalyst 2960-24LT-L Switch Front Panel
Catalyst 2960 Series PoE-8
1
2
3
4
5
6
7
8
9
10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
1X
11X
13X
23X
SYST
RPS
STAT
DUPLX
SPEED
PoE
1
2
2X
12X
14X
24X
MODE
POWER
OVER
ETHERNET
1
2
3
1
2
10/100 ports PoE ports
10/100 ports
3
10/100/1000 uplink ports
Figure 1-8
Catalyst 2960-24TT-L Switch Front Panel
SYST
RPS
STAT
DUPLX
SPEED
MODE
1
2
1
10/100 ports 2 10/100/1000 uplink ports
Figure 1-9
Catalyst 2960-48TT-L Switch Front Panel
SYST
RPS
STAT
DUPLX
SPEED
MODE
1
2
1
10/100 ports 2 10/100/1000 uplink ports
Catalyst 2960G-24TC-L and Catalyst 2960G-48TC-L Switches
The 10/100/1000 ports on the Catalyst 2960G-24TC-L and Catalyst 2960G-48TC-L switches are
grouped in pairs. The first member of the pair (port 1) is above the second member (port 2), port 3 is
above port 4, and so on. The SFP module slots are numbered 21 to 24 on the Catalyst 2960G-24TC-L
The Catalyst 2960G-24TC-L and Catalyst 2960G-48TC-L switches have dual-purpose ports, meaning
ports 21 to 24 or 45 to 48 can use either the SFP module or the RJ-45 connector for that port, but not
both. Use the software to set the connector type for these ports. For more information about the
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Chapter 1 Product Overview
Front Panel Description
Figure 1-10
Catalyst 2960G-24TC-L Switch Front Panel
SYST
RPS
STAT
DUPLX
SPEED
MODE
1
2
1
10/100/1000 ports 2 Dual-purpose ports
Figure 1-11
Catalyst 2960G-48TC-L Switch Front Panel
Catalyst 2960 SERIES
1
2
3
5
6
7
9
0
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
1
9
0
2
1
2
2
2
3
4
2
5
6
7
8
9
2
0
1
2
3
7
1
4
4
8
1
1
2
2
2
2
2
3
3
3
3
4
5
6
3
8
9
0
2
3
4
4
3
3
3
3
3
4
4
4
1X
1
5
X
1
7
X
31X
33X
42X
2X
1
6
X
1
8
X
32X
34X
46X
MODE
2
1
1
10/100/1000 ports 2
Dual-purpose ports
Catalyst 2960 Switch 8-Port Switches
These sections describe the Catalyst 2960 8-port switches:
•
•
Catalyst 2960PD-8TT-L Switch
The Catalyst 2960PD-8TT-L (Figure 1-12) switch front panel has a console port, eight 10/100 ports, and
a 10/100/1000 uplink port that can receive power from an upstream PoE switch. The switch can also
receive power from an AC power adapter that is connected through the rear panel.
Figure 1-12
Catalyst 2960PD-8TT-L Switch Front Panel
Catalyst 2960 Series
1
1x
2x
3x
4x
5x
6x
7x
8x
CONSOLE
SYST
STAT
DPLX
SPD
MODE
PoE INPUT
2
3
1
1
2
Console port
10/100 ports
3
10/100/1000 power input port
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Chapter 1 Product Overview
Front Panel Description
Catalyst 2960-8TC-L Catalyst 2960G-8TC -L Switches
Figure 1-14) are on the front panels. The switches also have a dual-purpose port that can use either
an RJ-45 connector or an SFP module, but not both. Use the software to set the connector type for
these ports.
For more information on the dual-purpose port, see the “Dual-Purpose Port” section on page 1-11. For
Figure 1-13
Catalyst 2960-8TC-L Switch Front Panel
Catalyst 2960
Series
1x
2x
3x
4x
5x
6x
7x
8x
CONSOLE
SYST
STAT
DPLX
SPD
1
MODE
2
3
1
1
2
Console port
10/100/100 ports
3
Dual-purpose port
Figure 1-14
Catalyst 2960G-8TC-L Switch Front Panel
Catalyst 2960G
Series
1x
2x
3x
4x
5x
6x
7x
CONSOLE
SYST
STAT
DPLX
SPD
1
MODE
2
3
1
1
2
Console port
10/100/1000 ports
3
Dual-purpose port
10/100 Ports
You can set the 10/100 ports to operate at 10 or 100 Mb/s in full-duplex or half-duplex mode. You can
also set these ports for speed and duplex autonegotiation. The default setting is autonegotiate. When the
port is set to autonegotiate, it senses the speed and duplex settings of the attached device and advertises
its own capabilities. If the connected device also supports autonegotiation, the switch port negotiates the
best connection (that is, the fastest line speed that both devices support and full-duplex transmission if
the attached device supports it) and configures itself accordingly. In all cases, the attached device must
be within 328 feet (100 meters).
100BASE-TX traffic requires a Category 5 or higher cable. 10BASE-T traffic can use Category 3 or
Category 4 cables.
When you connect the switch to workstations, servers, routers, and Cisco IP Phones, be sure that the
cable is a straight-through cable. When you connect the switch to switches or hubs, use a crossover cable.
Pinouts for the cables are described in Appendix A, “Connector and Cable Specifications.”
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Chapter 1 Product Overview
Front Panel Description
You can use the mdix auto interface configuration command in the command-line interface (CLI) to
enable the auto-MDIX feature. When the auto-MDIX feature is enabled, the switch detects the required
cable type for copper Ethernet connections and configures the interfaces accordingly. Therefore, you can
use either a crossover or a straight-through cable for connections to a copper 10/100/1000 or
1000BASE-T SFP module port on the switch, regardless of the type of device on the other end of the
connection. For configuration information for this feature, see the switch software configuration guide
or the switch command reference.
10/100/1000 Ports
You can set the 10/100/1000 ports to operate at 10, 100, or 1000 Mb/s in full-duplex or half-duplex
mode. You can also set these ports for speed and duplex autonegotiation. (The default setting is
autonegotiate.) When you set the port for autonegotiation, it senses the speed and duplex settings of the
attached device and advertises its own capabilities. If the connected device also supports
autonegotiation, the switch port negotiates the best connection (that is, the fastest line speed that both
devices support and full-duplex transmission if the attached device supports it) and configures itself
accordingly. In all cases, the attached device must be within 328 feet (100 meters).
100BASE-TX and 1000BASE-T traffic requires a Category 5 or higher cable. 10BASE-T traffic can use
Category 3 or Category 4 cables.
When you connect the switch to workstations, servers, routers, and Cisco IP Phones, be sure that the
cable is a straight-through cable. When you connect the switch to switches or hubs, use a crossover cable.
When using a straight-through or crossover cable for 1000BASE-T connections, be sure to use a twisted
four-pair, Category 5 or higher cable for proper operation. Pinouts for the cables are described in
You can use the mdix auto interface configuration command in the CLI to enable the automatic
medium-dependent interface crossover (auto-MDIX) feature. When the auto-MDIX feature is enabled,
the switch detects the required cable type for copper Ethernet connections and configures the interfaces
accordingly. Therefore, you can use either a crossover or a straight-through cable for connections to a
copper 10/100/1000 or 1000BASE-T SFP module port on the switch, regardless of the type of device on
the other end of the connection. For configuration information for this feature, see the switch software
configuration guide or the switch command reference.
PoE Ports
This section applies only to the Catalyst 2960-24PC-L and Catalyst 2960 24LT-L switches.
Warning
Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if
interconnections are made using uninsulated exposed metal contacts, conductors, or terminals.
Avoid using such interconnection methods, unless the exposed metal parts are located within a
restricted access location and users and service people who are authorized within the restricted
access location are made aware of the hazard. A restricted access area can be accessed only through
the use of a special tool, lock and key or other means of security. Statement 1072
The 10/100 ports on the Catalyst 2960-24PC-L and ports 1 to 8 of the 10/100 ports on the
Catalyst 2960-24LT-L switches provide PoE support for devices that are compliant with IEEE 802.3af.
The Cisco prestandard PoE is also supported for Cisco IP Phones and Cisco Aironet Access Points.
Each of the Catalyst 2960-24PC-L switch 10/100 ports and ports 1 to 8 on the Catalyst 2960-24LT-L
switch deliver 15.4 W of PoE.
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Chapter 1 Product Overview
Front Panel Description
On a per-port basis, you can control whether Catalyst 2960 PoE port automatically provides power when
you connect an IP phone or an access point. The device manager, Network Assistant, and the CLI provide
two PoE settings for each 10/100 PoE port: Auto and Never.
When you select the Auto setting, the port provides power only if a valid powered device, such as an
IEEE 802.3af-compliant powered device, a Cisco pre-standard IP phone, or a Cisco pre-standard Cisco
access point, is connected to it. The Auto setting is the default. However, when you select the Never
setting, the port does not provide power even if a Cisco IP phone or an access point is connected to it.
Cisco enhanced power negotiation allows some powered devices, such as the Cisco 7970G IP Phone, to
operate in high-power mode on Catalyst 2960 PoE switches. The powered device and the switch
negotiate through power-negotiation Cisco Discovery Protocol (CDP) messages for an agreed-upon
power-consumption level. The negotiation allows a high-power Cisco powered device that consumes
more than 7 W to operate at its highest power mode. The powered device first boots up in low-power
mode, consumes less than 7 W, and negotiates to obtain enough power to operate in high-power mode.
The device changes to high-power mode only when it receives confirmation from the switch. High-power
devices can operate in low-power mode on switches that do not support power-negotiation CDP.
For information about configuring and monitoring PoE ports, see the switch software
configuration guide.
You also can connect a Cisco IP Phone or Cisco Aironet Access Point to a Catalyst 2960 PoE switch
10/100 port and to an AC power source for redundant power. The powered device might switch to the
AC power source as its primary power source upon being connected to it. In that case, the PoE port
becomes the backup power source for the powered device.
If the primary source fails, the second power source becomes the primary power source to the powered
device. During the power transfer, an IP phone might reboot or reestablish link with the switch.
For information about Cisco IP Phones and Cisco Aironet Access Points, see the documentation that
came with your IP phone or access point.
Many legacy powered devices, including older Cisco IP phones and access points that do not fully
support IEEE 802.3af, might not support PoE when connected to the switches by a crossover cable.
SFP Module Slots
The Catalyst 2960 switches (other than those listed) use Gigabit Ethernet SFP modules for Gigabit
uplink connections and 100-Megabit SFP modules for 100-Megabit connections to establish fiber-optic
connections. These Catalyst 2960 switches do not have an SFP module slot:
•
•
•
•
•
Catalyst 2960-24LT-L
Catalyst 2960-24TT-L
Catalyst 2960-48TT-L
Catalyst 2960PD-8TT-L
Catalyst 2960-24-S
The transceiver modules are field-replaceable, providing the uplink interfaces when you insert an
SFP module. You can use the SFP modules for Gigabit uplink connections to other switches. You use
fiber-optic cables with LC connectors to connect to a fiber-optic SFP module. You use Category 5 or
higher cable with RJ-45 connectors to connect to a copper SFP module.
For more information about these SFP modules, see your SFP module documentation or the release notes
for your switch software. For more information about cabling requirements, see Appendix A,
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Front Panel Description
Dual-Purpose Port
You can configure a dual-purpose port as either a 10/100/1000 port or as an SFP module port.
Only one port can be active at a time. If both ports are connected, the SFP module port has priority.
You cannot configure the priority setting.
You can set the 10/100/1000 ports to autonegotiate. You can also configure them as fixed 10, 100, or
1000 Mb/s (Gigabit) Ethernet ports. You can configure the duplex setting. See the software configuration
for more information.
Power Input Port (Catalyst 2960PD-8TT-L Switch)
The Catalyst 2960PD-8TT-L can receive power from these sources:
1. Through a 10/100/1000 port from an upstream Ethernet switch that provides power (complies with
2. Through an external AC power adapter that connects to the back of the switch. This external power
adapter (PWR-A=) is not included with the switch, but you can order it from your Cisco
Figure 1-15
Connecting Through a 10/100/1000 Port
Catalyst 2960 Series
1
1x
2x
3x
4x
5x
6x
7x
8x
CONSOLE
SYST
STAT
DPLX
SPD
MODE
PoE INPUT
1
1
10/100/1000 Port
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Front Panel Description
Figure 1-16
Connecting Through an External AC Power Adapter
1
4
8
V
,
0
.3
A
1
Power adapter port
LEDs
example of the switch LEDs and the Mode button that you use to select one of the port modes.
All LEDs are visible through the GUI management applications—Network Assistant for multiple
switches and the device manager for a single switch. The switch software configuration guide describes
how to use the CLI to configure and to monitor individual switches and switch clusters.
The Catalyst 2960-24PC-L and Catalyst 2960-24LT-L switches have a PoE LED.
The Catalyst 2960-8TC-L, 2960G-8TC-L, 2960PD-8TT-L, 2960-24-S, 2960-24TC-S, and 2960-48TC-S
switches do not have an RPS LED.
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Front Panel Description
Figure 1-17
Catalyst 2960 Switch LEDs
7
1
2
3
4
1X
5
6
S
Y
7
S
T
8
9
R
P
10
S
11
12
S
D
T
A
T
11X
U
P
L
X
S
P
E
E
D
1
M
ODE
2
3
4
5
6
1
SYST LED
RPS LED
5
6
7
Speed LED
Mode button
Port LEDs
2
3
4
Status LED
Duplex LED
System LED
lists the LED colors and their meanings.
Table 1-2
System LED
Color
Off
System Status
System is not powered on.
Green
Amber
System is operating normally.
System is receiving power but is not functioning properly.
RPS LED
Note
The Catalyst 2960-8TC-L, 2960G-8TC-L, 2960PD-8TT-L, 2960-24-S, 2960-24TC-S, and 2960-48TC-S
switches do not have an RPS LED.
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Front Panel Description
Table 1-3
RPS LED
Color
RPS Status
RPS is off or not properly connected.
Off
Green
RPS is connected and ready to provide back-up power, if required.
Blinking green
RPS is connected but is unavailable because it is providing power to another device
(redundancy has been allocated to a neighboring device).
Amber
The RPS is in standby mode or in a fault condition. Press the Standby/Active button
on the RPS, and the LED should turn green. If it does not, the RPS fan could have
failed. Contact Cisco Systems.
Blinking amber
The internal power supply in a switch has failed, and the RPS is providing power
to the switch (redundancy has been allocated to this device).
For more information about the Cisco RPS 2300 or the Cisco RPS 675, see the related hardware
installation guide for that power system.
Port LEDs and Modes
Each RJ-45 port and SFP module slot has a port LED. These port LEDs, as a group or individually,
display information about the switch and about the individual ports. The port modes determine the type
of information displayed through the port LEDs. Table 1-4 lists the mode LEDs and their associated port
mode and meaning.
To select or change a mode, press the Mode button until the desired mode is highlighted. When you
change port modes, the meanings of the port LED colors also change. Table 1-5 explains how to interpret
the port LED colors in different port modes.
Table 1-4
Port Mode LEDs
Mode LED Port Mode
STAT Port status
Description
The port status. This is the default mode.
DUPLX Port duplex mode The port duplex mode: full duplex or half duplex.
SPEED Port speed The port operating speed: 10, 100, or 1000 Mb/s.
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Front Panel Description
Table 1-5
Meaning of LED Colors in Different Modes on the Switch
Port Mode LED Color
Meaning
STAT
(port status)
Off
No link, or port was administratively shut down.
Link present.
Green
Blinking green Activity. Port is sending or receiving data.
Alternating
green-amber
Link fault. Error frames can affect connectivity, and errors such as
excessive collisions, cyclic redundancy check (CRC) errors, and
alignment and jabber errors are monitored for a link-fault indication.
Amber
Port is blocked by Spanning Tree Protocol (STP) and is not forwarding
data. After a port is reconfigured, the port LED can remain amber for
up to 30 seconds as STP checks the switch for possible loops.
Blinking amber Port is blocked by STP and is sending or receiving packets.
DUPLX
(duplex)
Off
Port is operating in half duplex.
Port is operating in full duplex.
Green
10/100/1000 ports
Off
SPEED
Port is operating at 10 Mb/s.
Port is operating at 100 Mb/s.
Green
Blinking green Port is operating at 1000 Mb/s.
SFP module ports
Off
Port is operating at 10 Mb/s.
Port is operating at 100 Mb/s.
Green
Blinking green Port is operating at 1000 Mb/s.
Note 1000BASE-T SFP modules can operate at 10, 100, or 1000
Mb/s in full-duplex mode or at 10 or 100 Mb/s in half-duplex
mode in the Catalyst 2960 switches.
PoE
PoE port power The PoE status.
Even if PoE mode is not selected, the PoE LED still shows PoE problems when they are detected.
Table 1-6 lists the PoE mode LED colors and their meanings. The PoE LED applies only to Catalyst 2960
switches that support PoE.
Table 1-6
PoE Mode LED
Color
PoE Status
Off
PoE mode is not selected. None of the 10/100 or 10/100/1000 PoE ports have been denied power or are
in a fault condition.
Green
PoE mode is selected, and the PoE status is shown on the port LEDs.
Blinking amber
PoE mode is not selected. At least one of the 10/100 PoE ports has been denied power, or at least one of
the ports has a PoE fault.
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Front Panel Description
To select or change a mode, press the Mode button until the desired mode is highlighted. When you
change port modes, the meanings of the port LED colors also change. Table 1-7 explains how to interpret
the port LED colors in different port modes.
Table 1-7
Meaning of Port LED Colors in Different Modes on the Switch
Port Mode
LED Color
Meaning
PoE
Off
PoE is off.
If the powered device is receiving power from an AC power source, the PoE port LED
is off even if the powered device is connected to the switch port.
Green
PoE is on. The port LED is green only when the switch port is providing power.
Alternating green PoE is denied because providing power to the powered device will exceed the 370 W
and amber
switch power capacity.
Blinking amber
PoE is off due to a fault.
Caution
PoE faults are caused when noncompliant cabling or powered devices are
connected to a PoE port. Use only standard-compliant cabling to connect
Cisco pre-standard IP Phones or wireless access points or
IEEE 802.3af-compliant devices to PoE ports. You must remove from the
network the cable or device that causes a PoE fault.
Amber
PoE for the port has been disabled. PoE is enabled by default.
No link, or port was administratively shut down.
Link present.
STAT
(port status)
Off
Green
Blinking green
Activity. Port is sending or receiving data.
Alternating
green-amber
Link fault. Error frames can affect connectivity, and errors such as excessive
collisions, CRC errors, and alignment and jabber errors are monitored for a link-fault
indication.
Amber
Port is blocked by Spanning Tree Protocol (STP) and is not forwarding data. After a
port is reconfigured, the port LED can remain amber for up to 30 seconds as STP
checks the network topology for possible loops.
Blinking amber
Off
Port is blocked by STP and is not sending or receiving packets.
Port is operating in half duplex.
DUPLX
(duplex)
Green
Port is operating in full duplex.
10/100 and 10/100/1000 ports
SPEED
Off
Port is operating at 10 Mb/s.
Green
Port is operating at 100 Mb/s.
Port is operating at 1000 Mb/s.
Flashing green
SFP ports
Off
Port is operating at 10 Mb/s.
Port is operating at 100 Mb/s.
Port is operating at 1000 Mb/s.
Green
Blinking green
Note
The 1000BASE-T SFP modules can operate at 10, 100, or 1000 Mb/s in
full-duplex mode or at 10 or 100 Mb/s in half-duplex mode.
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Rear Panel Description
Dual-Purpose Port LEDs
The LEDs on a dual-purpose port show whether an RJ-45 connector is connected to the port, or if an SFP
module is installed in the slot. See the example in Figure 1-18. You can configure each port as either a
10/100/1000 port through the RJ-45 connector or as an SFP module, but not both at the same time. The
LEDs show how the port is being used (Ethernet or SFP module).
Figure 1-18
Dual-Purpose Port LEDs
1
2
3
4
1
1
2
RJ-45 connector
3
4
SFP module port in-use LED
SFP module slot
RJ-45 port in-use LED
Cable Guard for the Catalyst 2960-8TC-L, 2960G-8TC-L, and
2960PD-8TT-L Switches
You can order an optional cable guard to secure cables to the front of the Catalyst 2960-8TC-L,
2960G-8TC-L, and 2960PD-8TT-L switches and to prevent them from being accidentally removed.
To order a cable guard, contact your Cisco representative using these part numbers:
•
•
CBLGRD-C2960-8TC: Catalyst 2960-8TC-L and Catalyst 2960PD-8TT-L switches
CBLGRD-C2960G-8TC: Cisco Catalyst 2960G-8TC switch
Rear Panel Description
The rear panels on the Catalyst 2960 switches have all or some of these features: an RJ-45 console port,
exceptions:
•
•
•
No RPS connector: Catalyst 2960-8TC-L, 2960G-8TC-L, 2960PD-8TT-L, 2960-24-S,
2960-24TC-S, and 2960-48TC-S.
No fan: Catalyst 2960-8TC-L, 2960G-8TC-L, and 2960PD-8TT-L. The console port on these
switches is on the front panel rather than on the rear panel.
AC power adapter input: Catalyst 2960PD-8TT-L switch.
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Rear Panel Description
Figure 1-19
Catalyst 2960 Switch Rear Panel
C
O
N
S
O
L
E
1
2
3
4
1
2
RJ-45 console port 3 RPS connector
Fan exhaust AC power connector
4
Power Supplies
All switches other than the Catalyst 2960PD-8TT-L are powered through their internal power supply (see
These sections describe the power connection options:
•
•
Internal Power Supply Connector
The internal power supply is an autoranging unit that supports input voltages between 100 and 240 VAC.
Use the supplied AC power cord to connect the AC power connector to an AC power outlet.
Cisco RPS Connectors
You can connect the Cisco RPS 2300 or the Cisco RPS 675 to provide backup power if the switch
internal power supply fails on those switches that have an RPS power connector.
Note
These Catalyst 2960 switches do not have an RPS connector: Catalyst 2960-8TC-L, 2960G-8TC-L,
2960PD-8TT-L, 2960-24-S, 2960-24TC-S, and 2960-48TC-S switches.
Connect the switch and the Cisco RPS 2300 or the Cisco RPS 675 to the same AC power source. See the
Cisco redundant power systems (RPS) compatibility matrix documents on Cisco.com for more
information about which RPS are supported on each of the Catalyst 2960 switches.
Use the supplied RPS connector cable to connect the RPS to the switch. For information about power
requirements for the remote power system that you are connecting, see the hardware installation guide
for that power system.
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Rear Panel Description
Warning
Attach only the following Cisco RPS model to the RPS receptacle:
PWR-RPS2300, PWR675-AC-RPS-N1=. Statement 370
For more information about the Cisco RPS 675, see the Cisco RPS 675 Redundant Power System
Hardware Installation Guide on Cisco.com.
Cisco RPS 2300 Connector
The Catalyst 2960-24PC-L and 2960-24LT-L switches support only the Cisco RPS 2300. This is a
redundant power system that can support six network switches and provide power to one or two failed
switches at a time. It automatically senses when the power supply of a connected switch fails and
provides power to the failed switch, preventing loss of network traffic.
The Cisco RPS 2300 has two output levels: –52 V and 12 V. The total maximum output power depends
on the installed power-supply modules.
The six ports on the RPS 2300 provide the power and management communication signals to the
Catalyst 2960 switches. The RPS 2300 communicates with the Catalyst 2960-24PC-L and
Catalyst 2960-24LT-L switches through the 22-pin cable (CAB-RPS2300-E=). All other Catalyst 2960
switches connect to the RPS 2300 through a 14-pin connector cable (CAB-RPS2300=).
All connected switches can simultaneously communicate with the RPS 2300. You can configure these
RPS 2300 features through the switch software:
•
•
•
•
•
•
Enable RPS active or standby mode for each connected switch
Configure switch priority for RPS support
List the connected switches and their power-supply module size
Obtain reports when a switch is powered by the RPS
Obtain status reports for the RPS power-supply module
Read and monitor backup, failure, and exception history
For more information about the RPS 2300, see the Cisco Redundant Power System 2300 Hardware
Installation Guide on Cisco.com at this location:
http://www.cisco.com/en/US/products/ps7148/products_installation_guide_book09186a008075e608.html
Also see the switch software configuration guide on Cisco.com.
Console Port
You can connect the switch to a PC by means of the console port and the supplied RJ-45-to-DB-9 female
cable. If you want to connect the switch console port to a terminal, you need to provide an
RJ-45-to-DB-25 female DTE adapter. You can order a kit (part number ACS-DSBUASYN=) containing
that adapter from Cisco. For console port and adapter pinout information, see the “Connector and Cable
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Management Options
Security Slots
The Catalyst 2960-8TC-L, 2960G-8TC-L, and 2960PD-8TT-L switches have security slots on the left
and right side panels. You can install an optional cable lock, such as the type that is used to secure a
laptop computer, to secure either or both sides of the switch.
Figure 1-20 shows the slot on a left-side panel.
Figure 1-20
Switch Left Panel
1
1
Security slot
Management Options
The Catalyst 2960 switches offer several management options:
•
Cisco Network Assistant
Network Assistant is a PC-based network management GUI application optimized for LANs of
small and medium-sized businesses. Network Assistant offers centralized management of Cisco
switches ranging from the Catalyst 2950 switch to the Catalyst 4506 switch. Through the GUI, you
can configure and manage switch clusters or standalone switches.
Network Assistant is available at no cost and can be downloaded from this URL:
For information on starting Network Assistant, see the Getting Started with Cisco Network Assistant
guide on Cisco.com.
•
Device manager
You can use the device manager, which is in the switch memory, to manage individual and
standalone switches. Device manager is a web interface that offers quick configuration and
monitoring. You can access the device manager from anywhere in your network through a web
browser. For more information, see the device manager online help.
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Management Options
•
Cisco IOS command-line interface (CLI)
The switch CLI is based on Cisco IOS software and is enhanced to support desktop-switching
features. You can fully configure and monitor the switch and switch cluster members from the CLI.
You can access the CLI either by connecting your management station directly to the switch console
port or by using Telnet from a remote management station. See the Catalyst 2960 Switch Command
Reference on Cisco.com for more information.
For setup instructions that use the CLI, go to Appendix C, “Configuring the Switch with the
•
•
CiscoView application
The CiscoView device-management application displays the switch image that you can use to set
configuration parameters and to view switch status and performance information. The CiscoView
application, which you purchase separately, can be a standalone application or part of a Simple
Network Management Protocol (SNMP) platform. See the CiscoView documentation for more
information.
SNMP network management
You can use SNMP management applications such as CiscoWorks LAN Management Solution
(LMS) and HP OpenView to configure and manage the switch. You also can manage it from an
SNMP-compatible workstation that is running platforms such as HP OpenView or SunNet Manager.
The Cisco Configuration Engine is a network management device that works with embedded CNS
agents in the switch software. You can use Cisco Configuration Engine to automate initial
configurations and configuration updates on the switch.
Network Configurations
See the switch software configuration guide on Cisco.com for an explanation of network configuration
concepts. The software configuration guide also provides examples of network configurations that use
the switch to create dedicated network segments that are interconnected through Gigabit Ethernet
connections.
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Management Options
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C H A P T E R
2
Switch Installation (24- and 48-Port Switches)
This chapter describes how to start your switch and how to interpret the power-on self-test (POST) that
ensures proper operation. It also describes how to install the switch and how to make connections to the
switch.
This chapter provides installation information for all Catalyst 2960 switches, except for the
Catalyst 2960-8TC, Catalyst 2960G-8TC, and Catalyst 2960PD-8TT-L switches. For installation
information for those switches, see Chapter 3, “Switch Installation (8-Port Switches).”
The instructions in this chapter for connecting to the switch ports and for installing and connecting to
the small form-factor pluggable (SFP) modules apply to all Catalyst 2960 switches, including the 8-port
switches.
Read the topics and perform the procedures in this order:
•
•
•
•
•
•
•
•
Preparing for Installation
This section covers these topics:
•
•
•
•
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Preparing for Installation
Warnings
These warnings are translated into several languages in the Regulatory Compliance and Safety
Information for the Catalyst 2960 Switch document that ships with the switch.
Warning
Warning
Warning
To prevent the switch from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of 113°F (45°C). To prevent airflow restriction, allow at least
3 inches (7.6 cm) of clearance around the ventilation openings. Statement 17B
Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and can
cause serious burns or weld the metal object to the terminals. Statement 43
Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury
and equipment damage. Statement 48
Warning
Warning
Ethernet cables must be shielded when used in a central office environment. Statement 171
If a redundant power system (RPS) is not connected to the switch, install an RPS connector cover on
the back of the switch. Statement 265
Warning
Warning
Warning
Warning
To comply with safety regulations, mount the switches on a wall with the front panel facing up.
Statement 266
This product must be connected to a power-over-ethernet (PoE) IEEE 802.3af compliant power source
or an IEC60950 compliant limited power source. Statement 353
Attach only the following Cisco RPS model to the RPS receptacle:
PWR-RPS2300, PWR675-AC-RPS-N1=. Statement 370
Read the wall-mounting instructions carefully before beginning installation. Failure to use the
correct hardware or to follow the correct procedures could result in a hazardous situation to people
and damage to the system. Statement 378
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Preparing for Installation
Statement 371—Power Cable and AC Adapter
Warning
Warning
Do not work on the system or connect or disconnect cables during periods of lightning activity.
Statement 1001
Read the installation instructions before connecting the system to the power source. Statement
1004
Warning
To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
precautions to ensure that the system remains stable. The following guidelines are provided to
ensure your safety:
•
•
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest
component at the bottom of the rack.
•
If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in
the rack. Statement 1006
Warning
Warning
Class 1 laser product. Statement 1008
This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security.
Statement 1017
Warning
Warning
The plug-socket combination must be accessible at all times, because it serves as the main
disconnecting device. Statement 1019
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024
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Warning
Warning
Warning
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit. Statement 1028
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Ultimate disposal of this product should be handled according to all national laws and regulations.
Statement 1040
.
Warning
For connections outside the building where the equipment is installed, the following ports must be
connected through an approved network termination unit with integral circuit protection: 10/100/1000
Ethernet. Statement 1044
Warning
Warning
When installing or replacing the unit, the ground connection must always be made first and
disconnected last. Statement 1046
Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if
interconnections are made using uninsulated exposed metal contacts, conductors, or terminals.
Avoid using such interconnection methods, unless the exposed metal parts are located within a
restricted access location and users and service people who are authorized within the restricted
access location are made aware of the hazard. A restricted access area can be accessed only through
the use of a special tool, lock and key or other means of security. Statement 1072
Warning
Warning
No user-serviceable parts inside. Do not open. Statement 1073
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Guidelines for Particulate Matter
Cisco Ethernet Switches are equipped with cooling mechanisms, such as fans and blowers. However,
these fans and blowers can draw dust and other particles, causing contaminant buildup inside the chassis,
which can result in a system malfunction.
You must install this equipment in an environment as free as possible from dust and foreign conductive
material (such as metal flakes from construction activities).
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Preparing for Installation
These standards provide guidelines for acceptable working environments and acceptable levels of
suspended particulate matter:
•
•
•
Network Equipment Building Systems (NEBS) GR-63-CORE
National Electrical Manufacturers Association (NEMA) Type 1
International Electrotechnical Commission (IEC) IP-20
This precaution applies to all Catalyst 2960 switches except for the Catalyst 2960-8TC, 2960G-8TC, and
2960PD-8TT-L switches.
Installation Guidelines
This section does not apply to the Catalyst 2960-8TC, 2960G-8TC, and 2960PD-8TT-L switches. For
information applicable to those switches, see Chapter 3, “Switch Installation (8-Port Switches).”
When you determine where to place the switch, be sure to observe these requirements:
•
For 10/100/1000 ports, cable lengths from the switch to connected devices must be no longer than
328 feet (100 meters).
•
The cables meet the specifications in Table A-1 on page A-5, which lists the cable specifications for
1000BASE-X and 100BASE-X SFP modules available for the Catalyst 2960 switch. Catalyst 2960
switch SFP ports can use both GLC-GE-100XX and GLC-FE-100XX SFP modules.
When you use shorter lengths of single-mode fiber cable, you might need to insert an inline optical
attenuator in the link to avoid overloading the receiver.
When the fiber-optic cable span is less than 15.43 miles (25 km), you should insert a 5-decibel (dB)
or 10-dB inline optical attenuator between the fiber-optic cable plant and the receiving port on the
1000BASE-ZX SFP module at each end of the link.
•
•
The operating environment must be within the ranges listed in Appendix B, “Technical
Clearance to front and rear panels meets these conditions:
–
–
–
You can easily read the front-panel indicators.
Access to ports is sufficient for unrestricted cabling.
The rear-panel power connector is within reach of an AC power receptacle.
•
Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent
lighting fixtures. Make sure the cabling is safely away from other devices that might damage the
cables.
•
•
Airflow around the switch and through the vents is unrestricted.
Temperature around the unit does not exceed 113°F (45°C).
If the switch is installed in a closed or multirack assembly, the temperature around it might be
greater than normal room temperature.
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Preparing for Installation
Verifying Package Contents
This section does not apply to the Catalyst 2960-8TC, 2960G-8TC, and 2960PD-8TT-L switches. For
information applicable to those switches, see Chapter 3, “Switch Installation (8-Port Switches).”
Carefully remove the contents from the shipping container, and look at each item for damage. If any item
is missing or damaged, contact your Cisco representative or reseller for support. Return all packing
material to the shipping container, and save it.
The switch is shipped with these items:
•
Documentation CD that includes:
–
–
–
Catalyst 2960 Switch Getting Started Guide
Catalyst 2960 Switch Getting Started Guide (8-Port Switches)
Regulatory Compliance and Safety Information for the Catalyst 2960 Switch
•
Regulatory Compliance and Safety Information for the Catalyst 2960 Switch (printed guide that
contains only German warnings)
•
•
•
AC power cord (AC-powered switches)
One RJ-45-to-DB-9 adapter cable
Mounting kit that contains:
–
–
–
–
–
Four rubber feet for mounting the switch on a table
Two 19-inch rack-mounting brackets (also used for wall mounting)
Six Phillips flat-head screws for attaching the brackets to the switch
Four Phillips machine screws for attaching the brackets to a rack
One cable guide and one black Phillips machine screw for attaching the cable guide to one of
the mounting brackets
–
–
–
One redundant power system (RPS) connector cover
Two Phillips pan-head screws (for attaching the RPS cover)
Four Phillips truss-head screws (for wall-mounting brackets)
Note
The Catalyst 2960-8TC-L, 2960G-8TC-L, 2960-24-S, 2960-24TC-S, and 2960-48TC-S switches do not
have an RPS connector.
You can use the cable guide to manage a large number of cables in a rack. This is a different part than
the cable guard, which you use to secure cables to the front of the switch and prevent them from being
accidentally removed on the Catalyst 2960-8TC, 2960G-8TC, and 2960PD-8TT-L switches.
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Installing the Switch
Verifying Switch Operation
Before you install the switch in a rack, on a wall, or on a table or shelf, you should power on the switch
and verify that the switch passes POST.
If your configuration has an RPS, connect the switch and the RPS to the same AC power source. See
Chapter 3, “Switch Installation (8-Port Switches),” and see the Cisco RPS documentation for more
information.
Note
When you connect the RPS to the switch, put the RPS in standby mode. Set the RPS to active mode
during normal operation.
To power on the switch, connect one end of the AC power cord to the AC power connector on the switch,
and connect the other end of the power cord to an AC power outlet.
Warning
Attach only the following Cisco RPS model to the RPS receptacle:
PWR-RPS2300, PWR675-AC-RPS-N1=. Statement 370
As the switch powers on, it begins the POST, a series of tests that runs automatically to ensure that the
switch functions properly. LEDs can blink during the test. POST lasts approximately 1 minute. When
the switch begins POST, the System, RPS, Status, Duplex, and Speed LEDs turn green. The System LED
blinks green, and the other LEDs remain solid green.
When the POST completes successfully, the System LED remains green. The RPS LED remains green
for some time and then reflects the switch operating status. The other LEDs turn off and then reflect the
switch operating status. If a switch fails POST, the System LED turns amber.
POST failures are usually fatal. Call Cisco technical support representative if your switch fails POST.
After a successful POST, disconnect the power cord from the switch. Install the switch in a rack, on a
Installing the Switch
This section applies to all switches except the Catalyst 2960-8TC-L, Catalyst 2960G-8TC-L, and
Catalyst 2960PD-8TT-L switches. For information applicable to those switches, see Chapter 3, “Switch
This section describes these installation procedures:
•
•
•
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Installing the Switch
Rack-Mounting
This section applies to all switches except the Catalyst 2960-8TC-L, Catalyst 2960G-8TC-L, and
Catalyst 2960PD-8TT-L switches. For information applicable to those switches, see Chapter 3, “Switch
Installation (8-Port Switches).” The illustrations in this section might not show your specific switch;
however, the instructions apply to all 24- and 48-port switches.
Warning
To prevent bodily injury when mounting or servicing this unit in a rack, you
must take special precautions to ensure that the system remains stable. The
following guidelines are provided to ensure your safety:
•
•
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
When mounting this unit in a partially filled rack, load the rack from the bottom to the
top with the heaviest component at the bottom of the rack.
•
If the rack is provided with stabilizing devices, install the stabilizers before mounting
or servicing the unit in the rack. Statement 1006
To install the switch in a 19-inch or 24-inch rack (24-inch racks require optional mounting hardware),
follow the instructions described in these sections:
•
•
•
•
An optional bracket kit that is not included with the switch is required to install the switch in a 24-inch
rack. You can order a kit that contains the 24-inch rack-mounting brackets and hardware from Cisco by
using part number RCKMNT-1RU=.
Removing Screws from the Switch
If you plan to install the switch in a rack, you must first remove screws in the switch chassis so that you
Catalyst 2960 switch.
Figure 2-1
Removing Screws from the Catalyst 2960 Switch
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Installing the Switch
Attaching Brackets to the Catalyst 2960 Switch
The bracket orientation and the brackets that you use depend on whether you are attaching the brackets
for a 19-inch or a 24-inch rack. For 19-inch racks, use bracket part number 700-8209-01; for 24-inch
racks, use bracket part number 700-13248-01. Figure 2-2 to Figure 2-7 show how to attach each type of
bracket to one side of the switch. Follow the same steps to attach the second bracket to the opposite side.
Figure 2-2
Attaching Brackets for 19-Inch Racks to a Catalyst 2960 Switch, Front Panel Forward
1
1X
SYST
RPS
S
TAT
DUPLX
SPEED
11X
2X
M
O
D
E
12X
1
Phillips flat-head screws
Figure 2-3
Attaching Brackets for 24-Inch Racks to a Catalyst 2960 Switch, Front Panel Forward
1
1
X
SYST
RPS
S
TAT
1
DUPLX
SPEED
1
X
2
X
M
O
D
E
1
2
X
1
Phillips flat-head screws
Figure 2-4
Attaching Brackets for 19-Inch Racks to a Catalyst 2960 Switch, Rear Panel Forward
1
1
Phillips flat-head screws
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Installing the Switch
Figure 2-5
Attaching Brackets for 24-Inch Racks to a Catalyst 2960 Switch, Rear Panel Forward
1
1
Phillips flat-head screws
Figure 2-6
Attaching Brackets for 19-Inch Telco Racks to a Catalyst 2960 Switch
1
1
Phillips flat-head screws
Figure 2-7
Attaching Brackets for 24-Inch Telco Racks to a Catalyst 2960 Switch
1
1
Phillips flat-head screws
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Installing the Switch
Mounting the Switch in a Rack
After the brackets are attached to the switch, use the four supplied number-12 Phillips machine screws
Figure 2-8
Mounting the Catalyst 2960 Switch in a Rack
SY
ST
RP
S
ST
A
T
DU
PL
X
D
SP
EE
M
OD
E
1
1
Phillips machine screws
After the switch is mounted in the rack, do these tasks to complete the installation:
•
•
Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the Catalyst 2960 Switch
Getting Started Guide for instructions.
•
Connect to the front-panel ports. See the “Connecting to the 10/100 and 10/100/1000 Ports” section
Dual-Purpose Port” section on page 2-22 to complete the installation.
For configuration instructions about using the command-line interface (CLI) setup program, go to
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Installing the Switch
Attaching the Cable Guide
We recommend that you attach the cable guide to prevent the cables from obscuring the front panel of
the switch and the other devices installed in the rack. Use the supplied black screw shown in Figure 2-9
to attach the cable guide to the left or right bracket.
Figure 2-9
Attaching the Cable Guide on the Catalyst 2960 Switch
SY
ST
RP
S
ST
A
T
DU
PL
X
D
SP
EE
MO
DE
1
1
Cable guide screw
Wall-Mounting
This section does not apply to the Catalyst 2960-8TC, 2960G-8TC, and 2960PD-8TT-L switches. For
information applicable to those switches, see Chapter 3, “Switch Installation (8-Port Switches).”
To install the switch on a wall, follow the instructions in these sections:
•
•
•
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Installing the Switch
Attaching the Brackets to the Switch for Wall-Mounting
Figure 2-10 shows how to attach a 19-inch bracket to one side of the switch. Follow the same steps to
attach the second bracket to the opposite side.
Figure 2-10
Attaching the 19-inch Brackets for Wall-Mounting
1
1
Phillips truss-head screws
Attaching the RPS Connector Cover
If your switch has an RPS connector and you are not using an RPS with your switch, use the two Phillips
pan-head screws to attach the RPS connector cover to the back of the switch, as shown in Figure 2-11.
Warning
If an RPS is not connected to the switch, install an RPS connector cover on the back of the switch.
Statement 265
Figure 2-11
Attaching the RPS Connector Cover on the Catalyst 2960 Switch
C
O
N
S
O
L
E
3
1
2
1
Phillips pan-head screws
RPS connector cover
3
RPS connector
2
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Installing the Switch
Mounting the Switch on a Wall
For the best support of the switch and cables, make sure the switch is attached securely to wall studs or
to a firmly attached plywood mounting backboard. Mount the switch with the front panel facing up, as
Warning
Warning
To comply with safety regulations, mount the switches on a wall with the front panel facing up.
Statement 266
If a redundant power system (RPS) is not connected to the switch, install an RPS connector cover on
the back of the switch. Statement 265
Figure 2-12
Mounting the Switch on a Wall
X
2 1
X
1 1
X
2 1
X
1 1
X
2 1
X
1 1
X
2 1
X
1
X
1 1
K
C
U
D
D
E
E
X
L
E P
D
O
P
S
M
R
S Y S
T
P
T A
T
S
R
A
S
S
M
T
1
1
1
User-supplied screws
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Installing and Removing SFP Modules
After the switch is mounted on the wall, do these tasks to complete the installation:
•
•
Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the Catalyst 2960 Switch
Getting Started Guide for instructions.
•
Connect to the front-panel ports. See the “Connecting to the 10/100 and 10/100/1000 Ports” section
Dual-Purpose Port” section on page 2-22 to complete the installation.
For configuration instructions about using the CLI setup program, go to Appendix C, “Configuring the
Table- or Shelf-Mounting
This section applies to all switches except the Catalyst 2960-8TC-L, Catalyst 2960G-8TC-L, and
Catalyst 2960PD-8TT-L switches. For information applicable to those switches, see Chapter 3, “Switch
Follow these steps to install the switch on a table or shelf:
Step 1
Step 2
Locate the adhesive strip with the rubber feet in the mounting-kit envelope. Attach the four rubber feet
to the recessed areas on the bottom of the unit.
Place the switch on the table or shelf near an AC power source.
After the switch is mounted on the table, do these tasks to complete the installation:
•
•
Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the Catalyst 2960 Switch
Getting Started Guide for instructions.
•
Connect to the front-panel ports. See the “Connecting to the 10/100 and 10/100/1000 Ports” section
Dual-Purpose Port” section on page 2-22 to complete the installation.
For configuration instructions about using the CLI setup program, go to Appendix C, “Configuring the
Note
When the connectors are not being used, replace the dust covers on them for protection.
Installing and Removing SFP Modules
These sections describe how to install and remove SFP modules. SFP modules are inserted into SFP
module slots on the front of the Catalyst 2960 switches. These field-replaceable modules provide the
uplink optical interfaces, laser send (TX) and laser receive (RX).
You can use any combination of SFP modules. Refer to the Catalyst 2960 switch release notes for the
list of SFP modules that the Catalyst 2960 switch supports. Each SFP module must be of the same type
as the SFP module on the other end of the cable, and the cable must not exceed the stipulated cable length
for reliable communications. See the “SFP Module Cable Specifications” section on page A-4 for cable
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Installing and Removing SFP Modules
stipulations for SFP module connections. Use only Cisco SFP modules on the Catalyst 2960 switch.
Cisco SFP modules and the Catalyst 2960 switch support the Quality ID feature. Only SFP modules with
the Quality ID feature are supported.
For detailed instructions on installing, removing, and cabling the SFP module, refer to your SFP module
documentation.
Installing SFP Modules into SFP Module Slots
Figure 2-13 shows an SFP module that has a bale-clasp latch.
Caution
We strongly recommend that you do not install or remove the SFP module with fiber-optic cables
attached to it because of the potential damage to the cables, the cable connector, or the optical interfaces
in the SFP module. Disconnect all cables before removing or installing an SFP module.
Removing and installing an SFP module can shorten its useful life. Do not remove and insert SFP
modules more often than is absolutely necessary.
Figure 2-13
SFP Module with a Bale-Clasp Latch
To insert an SFP module into the SFP module slot, follow these steps:
Step 1
Step 2
Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.
Find the send (TX) and receive (RX) markings that identify the top side of the SFP module.
Note
On some SFP modules, the send and receive (TX and RX) markings might be replaced by arrows
that show the direction of the connection, either send or receive (TX or RX).
Step 3
Step 4
Align the SFP module in front of the slot opening.
Insert the SFP module into the slot until you feel the connector on the module snap into place in the rear
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Installing and Removing SFP Modules
Figure 2-14
Installing an SFP Module into an SFP Module Slot
Catalyst 2960
Ser
ies
SI
1
2
1
1
SFP module
Step 5
Remove the dust plugs from the SFP module optical ports and store them for later use.
Caution
Do not remove the dust plugs from the SFP module port or the rubber caps from the fiber-optic cable
until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables
from contamination and ambient light.
Step 6
Insert the LC cable connector into the SFP module.
Removing SFP Modules from SFP Module Slots
To remove an SFP module from a module receptacle, follow these steps:
Step 1
Step 2
Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.
Disconnect the LC from the SFP module.
Tip
For reattachment, note which cable connector plug is send (TX) and which is receive (RX).
Step 3
Step 4
Insert a dust plug into the optical ports of the SFP module to keep the optical interfaces clean.
If the module has a bale-clasp latch, pull the bale out and down to eject the module. If the bale-clasp
latch is obstructed and you cannot use your index finger to open it, use a small, flat-blade screwdriver
or other long, narrow instrument to open the bale-clasp latch.
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Connecting to the 10/100 and 10/100/1000 Ports
Figure 2-15
Removing a Bale-Clasp Latch SFP Module by Using a Flat-Blade Screwdriver
1
1
Bale clasp
Step 5
Step 6
Grasp the SFP module between your thumb and index finger, and carefully remove it from the module
slot.
Place the removed SFP module in an antistatic bag or other protective environment.
Connecting to the 10/100 and 10/100/1000 Ports
The switch 10/100/1000 ports configure themselves to operate at the speed of attached devices. If the
attached ports do not support autonegotiation, you can explicitly set the speed and duplex parameters.
Connecting devices that do not autonegotiate or that have their speed and duplex parameters manually
set can reduce performance or result in no linkage.
To maximize performance, choose one of these methods for configuring the Ethernet ports:
•
•
Let the ports autonegotiate both speed and duplex.
Set the port speed and duplex parameters on both ends of the connection.
Follow these steps to connect to 10BASE-T, 100BASE-TX or 1000BASE-T devices:
Caution
Step 1
To prevent electrostatic-discharge (ESD) damage, follow your normal board and component handling
procedures.
When connecting to workstations, servers, routers, and Cisco IP Phones, connect a straight-through
repeaters, use a crossover cable. (See the “Cable and Adapter Specifications” section on page A-4 for
cable-pinout descriptions.)
When you connect to 1000BASE-T-compatible devices, be sure to use a twisted four-pair, Category 5 or
higher cable.
The auto-MDIX feature is enabled by default. For configuration information for this feature, see the
switch software configuration guide or the switch command reference.
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Connecting to SFP Modules
Figure 2-16
Connecting to an Ethernet Port
1
X
SYST
RPS
S
TAT
DUPLX
SPEED
1
1
X
2
X
M
O
D
E
1
2
X
Step 2
Connect the other end of the cable to an RJ-45 connector on the other device. The port LED turns on
when both the switch and the connected device have established link.
The port LED is amber while Spanning Tree Protocol (STP) discovers the topology and searches for
loops. This can take up to 30 seconds, and then the port LED turns green. If the port LED does not turn
on, the device at the other end might not be turned on, or there might be a cable problem or a problem
with the adapter installed in the attached device. See Chapter 4, “Troubleshooting,” for solutions to
cabling problems.
Step 3
Step 4
Reconfigure and reboot the connected device if necessary.
Repeat Steps 1 through 3 to connect each device.
Connecting to SFP Modules
This section describes how to connect to SFP modules. For instructions on how to connect to fiber-optic
connect to copper 1000BASE-T SFP modules, see the “Connecting to 1000BASE-T SFP Modules”
section.
For instructions about how to install or remove an SFP module, see the “Installing and Removing SFP
For instructions on how to connect to a dual-purpose port, see the “Connecting to a Dual-Purpose Port”
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Connecting to SFP Modules
Connecting to Fiber-Optic SFP Modules
Follow these steps to connect a fiber-optic cable to an SFP module:
Warning
Caution
Class 1 laser product. Statement 1008
Do not remove the rubber plugs from the SFP module port or the rubber caps from the fiber-optic cable
until you are ready to connect the cable. The plugs and caps protect the SFP module ports and cables
from contamination and ambient light.
Before connecting to the SFP module, be sure that you understand the port and cabling stipulations in
the “Installation Guidelines” section on page 2-5 and in the “SFP Module Slots” section on page 1-10.
module.
Step 1
Step 2
Remove the rubber plugs from the module port and fiber-optic cable, and store them for future use.
Figure 2-17
Connecting to a Fiber-Optic SFP Module Port
1
1
LC connector
Step 3
Step 4
Insert the other cable end into a fiber-optic receptacle on a target device.
Observe the port status LED.
The LED turns green when the switch and the target device have an established link.
The LED turns amber while the STP discovers the network topology and searches for loops. This process
takes about 30 seconds, and then the port LED turns green.
If the LED is off, the target device might not be turned on, there might be a cable problem, or there might
solutions to cabling problems.
Step 5
If necessary, reconfigure and restart the switch or target device.
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Connecting to SFP Modules
Connecting to 1000BASE-T SFP Modules
Follow these steps to connect a Category 5 (or higher) cable to a 1000BASE-T SFP module:
Caution
Step 1
To prevent ESD damage, follow your normal board and component handling procedures.
workstations, and routers, insert a four twisted-pair, straight-through cable in the RJ-45 connector. When
connecting to switches or repeaters, insert a four twisted-pair, crossover cable.
Note
Note
When connecting to a 1000BASE-T device, be sure to use a four twisted-pair, Category 5 or
higher cable.
The auto-MDIX feature is enabled by default. For configuration information for this feature, see
the switch software configuration guide or the switch command reference.
Figure 2-18
Connecting to a 1000BASE-T SFP Module
1
1
RJ-45 connector
Step 2
Step 3
Insert the other cable end in an RJ-45 connector on a target device.
Observe the port status LED.
The LED turns green when the switch and the target device have an established link.
The LED turns amber while the STP discovers the network topology and searches for loops. This process
takes about 30 seconds, and then the port LED turns green.
If the LED is off, the target device might not be turned on, there might be a cable problem, or there might
solutions to cabling problems.
Step 4
If necessary, reconfigure and restart the switch or target device.
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Connecting to a Dual-Purpose Port
Connecting to a Dual-Purpose Port
You can configure the dual-purpose port as either a 10/100/1000 port or as an SFP module port. For a
To connect to a dual-purpose port, follow these steps:
Step 1
Connect an RJ-45 connector to the 10/100/1000 port, or install an SFP module into the SFP module slot,
Only one port can be active at a time. If both ports are connected, the SFP module port has priority. You
cannot configure the priority setting.
For more information about RJ-45 connectors and SFP modules, see the “Connecting to the 10/100 and
Figure 2-19
Connecting to a Dual-Purpose Port
1
2
5x
6x
7x
Catalyst 2960
8x
S
e
ri
e
s
1
1
RJ-45 connector
2
LC connector
Step 2
Connect the other end of the cable to the other device. The switch automatically detects the connection
and configures the port.
By default, the switch detects whether an RJ-45 connector or SFP module is connected to a dual-purpose
port and configures the port accordingly. You can change this setting and configure the port to recognize
only an RJ-45 connector or only an SFP module by using the media type interface configuration
command. For more information, see the command reference.
Where to Go Next
If the default configuration is satisfactory, the switch does not need further configuration. You can use
any of these management options to change the default configuration:
•
Start the device manager, which is in the switch memory, to manage individual switches. The device
manager is an easy-to-use web interface that offers quick configuration and monitoring. You can
access the device manager from anywhere in your network through a web browser. For more
information, see the device manager online help.
•
Start the Network Assistant application, which is described in the Getting Started with Cisco
Network Assistant guide. Through this GUI, you can configure and monitor a switch cluster or an
individual switch.
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Where to Go Next
•
•
Use the CLI from the console to configure the switch as a member of a cluster or as an individual
switch. See the Catalyst 2960 Switch Software Configuration Guide and the Catalyst 2960 Switch
Command Reference on Cisco.com for information on using the CLI with a Catalyst 2960 switch.
Start an SNMP application such as the CiscoView application.
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Chapter 2 Switch Installation (24- and 48-Port Switches)
Where to Go Next
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C H A P T E R
3
Switch Installation (8-Port Switches)
This chapter describes how to start your switch and how to interpret the power-on self-test (POST) that
ensures proper operation. It also describes how to install the switch. The installation information in this
chapter is specific to the Catalyst 2960-8TC-L, Catalyst 2960G-8TC-L, and Catalyst 2960PD-8TT-L
switches. For installation information applicable to the other Catalyst 2960 switches, see Chapter 2,
Read the topics and perform the procedures in this order:
•
•
•
•
For information about connecting to the switch, see Chapter 2, “Switch Installation (24- and 48-Port
Preparing for Installation
This section covers these topics:
•
•
•
•
Warnings
These warnings are translated into several languages in the Regulatory Compliance and Safety
Information for the Catalyst 2960 Switch document that shipped with the switch.
Warning
To prevent the switch from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of 113°F (45°C). To prevent airflow restriction, allow at least
3 inches (7.6 cm) of clearance around the ventilation openings. Statement 17B
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Chapter 3 Switch Installation (8-Port Switches)
Preparing for Installation
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and can
cause serious burns or weld the metal object to the terminals. Statement 43
Warning
Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury
and equipment damage. Statement 48
Warning
Note
Ethernet cables must be shielded when used in a central office environment. Statement 171
Warning statement 353 applies only to the Catalyst 2960PD-8TT-L switch:
Warning
This product must be connected to a power-over-ethernet (PoE) IEEE 802.3af compliant power source
or an IEC60950 compliant limited power source. Statement 353
Statement 371—Power Cable and AC Adapter
Warning
Warning
Do not work on the system or connect or disconnect cables during periods of lightning activity.
Statement 1001
Read the installation instructions before connecting the system to the power source. Statement 1004
Warning
To prevent bodily injury when mounting or servicing this unit in a rack, you
must take special precautions to ensure that the system remains stable. The
following guidelines are provided to ensure your safety:
•
•
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
When mounting this unit in a partially filled rack, load the rack from the bottom to the
top with the heaviest component at the bottom of the rack.
•
If the rack is provided with stabilizing devices, install the stabilizers before mounting
or servicing the unit in the rack. Statement 1006
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Chapter 3 Switch Installation (8-Port Switches)
Preparing for Installation
Warning
Warning
Class 1 laser product. Statement 1008
The plug-socket combination must be accessible at all times, because it serves as the main
disconnecting device. Statement 1019
Warning
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024
Warning
Warning
Ultimate disposal of this product should be handled according to all national laws and regulations.
Statement 1040
.
For connections outside the building where the equipment is installed, the following ports must be
connected through an approved network termination unit with integral circuit protection: 10/100/1000
Ethernet. Statement 1044
Warning
When installing or replacing the unit, the ground connection must always be made first and
disconnected last. Statement 1046
Warning
Warning
No user-serviceable parts inside. Do not open. Statement 1073
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Installation Guidelines
This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other
Catalyst 2960 switches, see Chapter 2, “Switch Installation (24- and 48-Port Switches).”
When you determine where to place the switch, be sure to observe these requirements:
•
•
The operating environment must be within the ranges listed in Appendix B, “Technical
Airflow around the switch and through the vents must be unrestricted.
We strongly recommend that you allow at least 3 inches (7.6 cm) of clearance around the ventilation
openings.
•
Temperature around the unit does not exceed 113°F (45°C).
If the switch is installed in a closed environment or in a multirack assembly, the temperature around
it might be greater than normal room temperature.
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Chapter 3 Switch Installation (8-Port Switches)
Preparing for Installation
•
•
•
Humidity around the switch must not exceed 85 percent.
Altitude at the installation site must not be greater than 10,000 feet (3,049 meters).
The bottom of the switch might be hot to the touch if the switch is operating at its maximum
temperature 113°F (45°C) and is in an environment that exceeds normal room temperature (such as
in a closet, in a cabinet, or in a closed or multirack assembly).
•
•
Do not place any items on the top of the switch.
Do not stack switches or place switches side-by-side unless they are separated on all sides by at least
3 inches (7.6 cm) of clearance from each other.
•
•
Allow at least 1.75 inches (4 cm) of clearance above each switch in the rack.
Do not wall-mount the switch with its front panel facing up or sideways. According to safety
regulations, wall-mount the switch with its front panel facing down to prevent airflow restriction and
to provide easier access to the cables.
•
Clearance to the switch front and rear panels meets these conditions
–
–
–
You can easily read the front-panel indicators.
Access to ports is sufficient for unrestricted cabling.
The AC power cord can reach from the AC power outlet to the connector on the switch
rear panel.
•
Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent
lighting fixtures. Make sure the cabling is safely away from other devices that might damage the
cables.
•
•
For 10/100/1000 ports, cable lengths from the switch to connected devices must be 328 feet
(100 meters).
The cables meet the specifications in Table A-1 on page A-5, which lists the cable specifications for
1000BASE-X and 100BASE-X small form-factor (SFP) modules available for the Catalyst 2960
switch.
When you use shorter lengths of single-mode fiber-optic cable, you might need to insert an inline
optical attenuator in the link to avoid overloading the receiver.
When the fiber-optic cable span is less than 15.43 miles (25 km), you should insert a 5-decibel (dB)
or 10-dB inline optical attenuator between the fiber-optic cable plant and the receiving port on the
1000BASE-ZX SFP module at each end of the link.
Equipment That You Supply
This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other
Catalyst 2960 switches, see Chapter 2, “Switch Installation (24- and 48-Port Switches).”
You need this equipment to install the switch:
•
•
Number-2 Phillips screwdriver
Drill with a #27 drill bit (0.144-inch [3.7 mm])
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Chapter 3 Switch Installation (8-Port Switches)
Preparing for Installation
You can order an optional cable guard to secure cables to the front of the switch and prevent them from
being accidentally removed. To order a cable guard, contact your Cisco representative and use these part
numbers:
•
Catalyst 2960-8TC-L and 2960PD-8TT-L switches cable guard part number:
CBLGRD-C2960-8TC=
•
Catalyst 2960G-8TC-L switch cable guard part number: CBLGRD-C2960G-8TC=
The cable guard is a different part than the cable guide, which you can use to manage a large number
of cables in a rack on switches other than the Catalyst 2960-8TC-L and Catalyst 2960G-8TC-L
switches.
The switch has security slots in the left and right side panels. You can install an optional cable lock, such
as the type that is used to secure a laptop computer, to secure either or both sides of the switch. Cable
locks are available from most computer accessory suppliers.
Installing the Catalyst 2960 8-port switches in a 19-inch rack requires an optional bracket kit that is not
included with the switch. You can order a kit containing the 19-inch rack-mounting brackets and
hardware from Cisco. The kit part number is RCKMNT-19-CMPCT=.
If you want to connect a terminal to the switch console port, you need to provide an RJ-45-to-DB-25
female DTE adapter. You can order a kit (part number ACS-DSBUASYN=) with that adapter from Cisco.
Verifying Package Contents
This section is specific to the Catalyst 2960 8-port switches. For information that applies to all other
Catalyst 2960 switches, see Chapter 2, “Switch Installation (24- and 48-Port Switches).”
Note
Carefully remove the contents from the shipping container, and check each item for damage. If any item
is missing or damaged, contact your Cisco representative or reseller for support. Return all packing
material to the shipping container, and save it.
The switch is shipped with these items:
•
Documentation CD that contains the Catalyst 2960 Switch Getting Started Guide (8-Port Switches)
and the Catalyst 2960 Switch Getting Started Guide
•
•
•
•
Regulatory Compliance and Safety Information for the Catalyst 2960 Switch
AC power cord (AC-powered switches)
One RJ-45-to-DB-9 adapter cable
Mounting kit that contains:
–
–
Four rubber feet for installing the switch on a desk or shelf
Three number-8 Phillips pan-head screws for mounting the switch on or under a desk or shelf,
or on a wall
–
–
Screw template for aligning screws
Magnet for mounting the switch on a metal surface
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Chapter 3 Switch Installation (8-Port Switches)
Verifying Switch Operation
Verifying Switch Operation
Before installing the switch in a rack, or on a desk, a shelf, or a wall, you should power on the switch
and verify that it passes POST.
To power on the switch, connect one end of the AC power cord to the AC power connector on the switch,
and connect the other end of the power cord to an AC power outlet.
You can power the Catalyst 2960PD-8TT-L switch through a 10/100/1000 uplink port, which can receive
power from an upstream PoE switch. You can also connect the switch to an AC power adapter on the rear
information.
As the switch powers on, it begins the POST, a series of tests that runs automatically to ensure that the
switch functions properly. LEDs can blink during the test. POST lasts approximately 1 minute. When
the switch begins POST, the System, Status, Duplex, and Speed LEDs turn green. The System LED
blinks green, and the other LEDs remain solid green.
When the POST completes successfully, the System LED remains green. The other LEDs turn off and
then reflect the switch operating status. If a switch fails POST, the System LED turns amber.
POST failures are usually fatal. Call Cisco technical support representative if your switch fails POST.
After a successful POST, disconnect the power cord from the switch. Install the switch in a rack, or on
Installing the Switch
This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other
Catalyst 2960 switches, see Chapter 2, “Switch Installation (24- and 48-Port Switches).”
This section describes these installation procedures:
•
•
•
•
•
•
•
Desk- or Shelf-Mounting (without Mounting Screws)
This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other
Catalyst 2960 switches, see Chapter 2, “Switch Installation (24- and 48-Port Switches).”
The switch can be installed on top of a desk or shelf with or without mounting screws. If you do not want
to use the mounting screws, follow these steps:
Step 1
Locate the adhesive strip with the rubber feet in the accessory kit.
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Chapter 3 Switch Installation (8-Port Switches)
Installing the Switch
Step 2
Step 3
Remove the four rubber feet from the adhesive strip, and attach them to the recessed areas on the bottom
of the unit. This prevents the switch from sliding on the desk or shelf.
Note
We strongly recommend that you attach the rubber feet. Doing so helps prevent airflow
restriction and overheating.
Place the switch on the desk or shelf.
Note
We strongly recommend that you allow at least 3 inches (7.6 cm) of clearance around the
ventilation openings to prevent airflow restriction and overheating.
Do not stack switches or place switches side-by-side unless they are separated on all sides by at
least 3 inches (7.6 cm) of clearance from each other.
Do not place any items on the top of the switch.
After the switch is mounted on the desk or shelf, do these tasks to complete the installation:
2. Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide
for instructions.
3. Connect to the front-panel ports. See the “Connecting to the 10/100 and 10/100/1000 Ports” section
Dual-Purpose Port” section on page 2-22 to complete the installation.
For configuration instructions about using the command-line interface (CLI) setup program, go to
Desk- or Shelf-Mounting (with Mounting Screws)
This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other
Catalyst 2960 switches, see Chapter 2, “Switch Installation (24- and 48-Port Switches).”
The switch can be secured to a desk or shelf with mounting screws. Follow these steps:
Step 1
Step 2
Locate the screw template. You can use the template to align the mounting screw holes and also as a
guide to make sure that you install the screws into the desk or shelf with proper clearance.
Position the screw template on top of the desk or shelf so that the two side-by-side slots face the front of
the desk or shelf, as shown in Figure 3-1. This ensures that the power cord faces the rear of the desk or
shelf after the switch is installed.
Note
Wait before you attach the screw template to the desk or shelf.
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Chapter 3 Switch Installation (8-Port Switches)
Installing the Switch
Figure 3-1
Installing the Mounting Screws on Top of a Desk or Shelf
2
1
3
1
2
Screw template
Screws
3
Desk or shelf
Step 3
Step 4
Peel the adhesive strip off the bottom of the screw template, and attach it to the top of the desk or shelf.
Use a 0.144-inch (3.7 mm) or a #27 drill bit to drill a 1/2-inch (12.7 mm) hole in the three screw
template slots.
Step 5
Insert three screws in the slots on the screw template, and tighten them until they touch the top of the
screw template.
Step 6
Step 7
Remove the screw template from the desk or shelf.
Place the switch onto the mounting screws, and slide the switch forward until it locks in place, as shown
Note
We strongly recommend that you allow at least 3 inches (7.6 cm) of clearance around the
ventilation openings to prevent airflow restriction and overheating.
Do not stack switches or place switches side-by-side unless they are separated on all sides with
at least 3 inches (7.6 cm) of clearance from each other.
Do not place any items on the top of the switch.
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Chapter 3 Switch Installation (8-Port Switches)
Installing the Switch
Figure 3-2
Mounting the Switch on Top of a Desk or Shelf
SY
ST
ST
AT
CONSOLE
D
PL
X
D
1x
2x
3x
4x
5x
6x
SP
M
OD
7x
E
Catalyst 2960
8x
S
er
ies
1
3
1
2
1
2
Slides on this way
Screws
3
Desk or shelf
After the switch is mounted on the desk or shelf, do these tasks to complete the installation:
2. Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide
for instructions.
3. Connect to the front-panel ports. See the “Connecting to the 10/100 and 10/100/1000 Ports” section
Dual-Purpose Port” section on page 2-22 to complete the installation.
For configuration instructions about using the CLI setup program, go to Appendix C, “Configuring the
Under the Desk- or Shelf-Mounting (with Mounting Screws)
This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other
Catalyst 2960 switches, see Chapter 2, “Switch Installation (24- and 48-Port Switches).”
Follow these steps to install the switch under a desk or shelf:
Step 1
Step 2
Locate the screw template. The template is used to align the mounting screw holes and is also used as a
guide to make sure the screws are installed under the desk or shelf with proper clearance.
Position the screw template underneath the desk or shelf so that the two side-by-side slots face the front
of the desk or shelf, as shown in Figure 3-3. This ensures that the power cord faces the rear of the desk
or shelf after the switch is installed.
Step 3
Peel the adhesive strip off the bottom of the screw template, and attach it to the underside of the desk or
shelf.
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Chapter 3 Switch Installation (8-Port Switches)
Installing the Switch
Figure 3-3
Installing the Mounting Screws Under a Desk or Shelf
1
2
4
3
3
1
2
Desk or shelf
3
4
Screws
Screw template
Adhesive
Step 4
Step 5
Use a 0.144-inch (3.7 mm) or a #27 drill bit to drill a 1/2-inch (12.7 mm) hole in the three screw
template slots.
Insert three screws in the slots on the screw template, and tighten until they touch the top of the screw
template.
Step 6
Step 7
Remove the screw template from underneath the desk or shelf.
Place the switch onto the mounting screws, and slide the switch forward until it locks in place, as shown
Note
We strongly recommend that you allow at least 3 inches (7.6 cm) of clearance around the
ventilation openings to prevent airflow restriction and overheating.
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Chapter 3 Switch Installation (8-Port Switches)
Installing the Switch
Figure 3-4
Mounting the Switch Under a Desk or Shelf
1
2
1
i e s
e r
S
s t 2 9 6 0
a l y
C a t
8 x
7 x
6 x
5 x
4 x
3 x
2 x
D
P
S
1 x
X L
P
D
C O N S O L E
T
T
A
T
S
Y S
3
1
2
Desk or shelf
Screws
3
Slides on this way
After the switch is mounted under the desk or shelf, do these tasks to complete the installation:
2. Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide
for instructions.
3. Connect to the front-panel ports. See the “Connecting to the 10/100 and 10/100/1000 Ports” section
Dual-Purpose Port” section on page 2-22 to complete the installation.
For configuration instructions about using the CLI setup program, go to Appendix C, “Configuring the
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Chapter 3 Switch Installation (8-Port Switches)
Installing the Switch
Wall-Mounting (with Mounting Screws)
This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other
Catalyst 2960 switches, see Chapter 2, “Switch Installation (24- and 48-Port Switches).”
The steps in this section show how to mount the switch with the front panel facing down (as shown in
Note
Do not wall-mount the switch with its front panel facing up or sideways. According to safety regulations,
wall-mount the switch with its front panel facing down to prevent airflow restriction and to provide
easier access to the cables.
Follow the steps in this section to install the switch to a wall:
Step 1
Step 2
Locate the screw template. The template is used to align the mounting screw holes.
Position the screw template so that the two side-by-side slots face toward the floor, as shown in
For the best support of the switch and cables, make sure that you attach the switch securely to a wall stud
or to a firmly attached plywood mounting backboard.
Step 3
Peel the adhesive strip off the bottom of the screw template.
Figure 3-5
Installing the Mounting Screws on a Wall
1
2
THIS SIDE A
MOUNTING SURF
W
A
Y
FR
OM
A
CE
CABLE SIDE ENTR
Y
2
3
2
1
2
Wall
3
Screw template
Screws
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Chapter 3 Switch Installation (8-Port Switches)
Installing the Switch
Step 4
Step 5
Attach the screw template to the wall.
Use a 0.144-inch (3.7 mm) or a #27 drill bit to drill a 1/2-inch (12.7 mm) hole in the three screw
template slots.
Step 6
Insert three screws in the slots on the screw template, and tighten until they touch the top of the
screw template.
Step 7
Step 8
Remove the screw template from the wall.
Place the switch onto the mounting screws, and slide it down until it locks in place, as shown
Figure 3-6
Installing the Switch On a Wall
1
3
2
2
2
1
2
Switch
Screw
3
Slides on this way
After the switch is mounted on the wall, do these tasks to complete the installation:
2. Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide
for instructions.
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Chapter 3 Switch Installation (8-Port Switches)
Installing the Switch
3. Connect to the front-panel ports. See the “Connecting to the 10/100 and 10/100/1000 Ports” section
Dual-Purpose Port” section on page 2-22 to complete the installation.
For configuration instructions about using the CLI setup program, go to Appendix C, “Configuring the
Magnet Mounting
This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other
Catalyst 2960 switches, see Chapter 2, “Switch Installation (24- and 48-Port Switches).”
To mount a switch by using the magnet, follow these steps:
Step 1
Figure 3-7
Mounting the Switch with a Magnet
1
2
s
r i e
S
0
6
9
t 2
s
l y
x 8
t a
a
C
x
7
x
6
x
5
x
4
x
3
x
S P D
D P L X
x
1
2
E
L
O
S
N
O
C
T
A
S T
S Y S T
3
1
2
Metal surface
Magnet
3
Switch
Step 2
Mount the magnet and switch on a metal surface.
After the switch is attached to the mounting magnet, do these tasks to complete the installation:
2. Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide
for instructions.
3. Connect to the front-panel ports. See the “Connecting to the 10/100 and 10/100/1000 Ports” section
Dual-Purpose Port” section on page 2-22 to complete the installation.
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Chapter 3 Switch Installation (8-Port Switches)
Installing the Switch
For configuration instructions about using the CLI setup program, go to Appendix C, “Configuring the
Rack-Mounting
This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other
Catalyst 2960 switches, see Chapter 2, “Switch Installation (24- and 48-Port Switches).”
Installing the Catalyst 2960 8-port switches in a 19-inch rack requires an optional bracket kit that is not
included with the switch. You can order a kit containing the 19-inch rack-mounting brackets and
hardware from Cisco. The kit part number is RCKMNT-19-CMPCT=.
Warning
To prevent bodily injury when mounting or servicing this unit in a rack, you
must take special precautions to ensure that the system remains stable. The
following guidelines are provided to ensure your safety:
•
•
This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
When mounting this unit in a partially filled rack, load the rack from the bottom to the
top with the heaviest component at the bottom of the rack.
•
If the rack is provided with stabilizing devices, install the stabilizers before mounting
or servicing the unit in the rack. Statement 1006
To install the switch in a 19-inch rack, follow the instructions described in these sections:
•
•
Attaching Brackets to the Switch
Figure 3-8 shows how to attach a 19-inch bracket to one side of the switch. Follow the same steps to
attach the second bracket to the opposite side.
Figure 3-8
Attaching the 19-inch Brackets for Rack-Mounting
S
S
D
Y
TA
P
L
P
S
T
X
D
T
C
O
N
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O
L
E
1
x
S
2
x
3
x
4
x
5
x
1
6
x
M
O
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E
7
x
Catal
8
x
yst 2960
S
eries
1
1
Phillips flat-head screw
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Chapter 3 Switch Installation (8-Port Switches)
Installing the Switch
Mounting the Switch in a 19-Inch Rack
After the brackets are attached to the switch, insert the switch into the 19-inch rack, and align the bracket
in the rack. Use either the 10-32 pan-head screws or the 12-24 pan-slotted screws to secure the switch
Note
We strongly recommend that you allow at least 1.75 inches (4 cm) of clearance above each switch in
the rack.
Figure 3-9
Mounting the Switch in a 19-Inch Rack
S
S
D
Y
TA
P
S
T
T
LX
C
O
N
S
O
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E
1
x
S
P
D
2
x
3
x
4
x
5
x
6
x
M
O
D
7
x
E
Catal
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yst 2960
S
eries
1
1
1
Phillips machine screws
After the switch is mounted in the rack, do these tasks to complete the installation:
2. Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide
for instructions.
3. Connect to the front-panel ports. See the “Connecting to the 10/100 and 10/100/1000 Ports” section
Dual-Purpose Port” section on page 2-22 to complete the installation.
For configuration instructions about using the CLI setup program, go to Appendix C, “Configuring the
Wall-Mounting (with Rack-Mount Brackets)
To install the Catalyst 2960 8-port switches in a 19-inch rack requires an optional bracket kit that is not
included with the switch. You can order a kit containing the 19-inch rack-mounting brackets and
hardware from Cisco. The kit part number is RCKMNT-19-CMPCT=.
This section is specific to the Catalyst 2960 8-port switches. For information applicable to the other
Catalyst 2960 switches, see Chapter 2, “Switch Installation (24- and 48-Port Switches).”
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Chapter 3 Switch Installation (8-Port Switches)
Installing the Switch
To mount the switch with brackets on a wall, follow these steps:
Step 1
Step 2
Attach a 19-inch bracket to one side of the switch. Follow the same steps to attach the second bracket to
For the best support of the switch and cables, make sure the switch is attached securely to wall studs or
to a firmly attached plywood mounting backboard.
Do not wall-mount the switch with its front panel facing up or sideways according to safety regulations.
Wall-mount the switch with its front panel facing down to prevent airflow restriction and to provide
easier access to the cables.
Figure 3-10
Mounting the Switch on a Wall
1
2
1
Phillips flat-head screw
2
User-supplied screws
After the switch is mounted on the wall, do these tasks to complete the installation:
2. Connect to a 10/100 or 10/100/1000 port, and run Express Setup. See the switch getting started guide
for instructions.
3. Connect to the front-panel ports. See the “Connecting to the 10/100 and 10/100/1000 Ports” section
Dual-Purpose Port” section on page 2-22 to complete the installation.
For configuration instructions about using the CLI setup program, go to Appendix C, “Configuring the
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Chapter 3 Switch Installation (8-Port Switches)
Where to Go Next
Where to Go Next
If the default configuration is satisfactory, the switch needs no further configuration. You can use any of
these management options to change the default configuration:
•
Start the device manager, which is in the switch memory, to manage individual and standalone
switches. The device manager is a web interface that offers quick configuration and monitoring.
You can access the device manager from anywhere in your network through a web browser.
For more information, see the device manager online help.
•
•
•
Start the Network Assistant application, which is described in the Getting Started with Cisco
Network Assistant guide. Through this GUI, you can configure and monitor a switch cluster or an
individual switch.
Use the CLI from the console to configure the switch as a member of a cluster or as an individual
switch. See the Catalyst 2960 Switch Software Configuration Guide and the Catalyst 2960 Switch
Command Reference on Cisco.com for information on using the CLI with a Catalyst 2960 switch.
Start an SNMP application such as the CiscoView application.
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C H A P T E R
4
Troubleshooting
The LEDs on the front panel provide troubleshooting information about the switch. They show failures
in the power-on self-test (POST), port-connectivity problems, and overall switch performance. For a full
You can also get statistics from the browser interface, from the command-line interface (CLI), or from
a Simple Network Management Protocol (SNMP) workstation. See the software configuration guide, the
switch command reference guide on Cisco.com, or the documentation that came with your SNMP
application for details.
This chapter describes these topics for troubleshooting problems:
•
•
•
Diagnosing Problems
The LEDs on the front panel provide troubleshooting information about the switch. They show POST
failures, port-connectivity problems, and overall switch performance. You can also get statistics from the
CLI or from an SNMP workstation. See the software configuration guide and the switch command
reference on Cisco.com or the documentation that came with your SNMP application for more
information.
This section includes these troubleshooting topics:
•
•
•
•
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Chapter 4 Troubleshooting
Diagnosing Problems
Verify Switch POST Results
As the switch powers on, it begins the POST, a series of tests that runs automatically to ensure that the
switch functions properly. It might take several minutes for the switch to complete POST.
When the switch begins POST, the system LED slowly blinks green. When POST completes, the system
LED blinks amber. If POST fails, the system LED remains amber. If POST completes successfully, the
system LED rapidly blinks green.
Note
POST failures are usually fatal. Contact your Cisco technical support representative if your switch does
not pass POST.
Monitor Switch LEDs
You must have physical access to the switch to do this. Look at the port LEDs for troubleshooting
information about the switch. See the “LEDs” section on page 1-12 for a description of the LED colors
and their meanings.
Verify Switch Connections
Review these sections when troubleshooting switch connectivity problems:
•
•
•
•
•
•
•
Bad or Damaged Cable
Always look at the cable for marginal damage or failure. A cable might connect at the physical layer but
then cause packet corruption because of subtle damage to its wiring or connectors. You can identify this
situation because the port will have many packet errors, or the port constantly loses and regains link. In
these situations:
•
•
•
Change the copper or fiber-optic cable with a known, good cable if necessary.
Look for broken or missing pins on cable connectors.
Rule out any insufficient patch panel connections or media convertors between the source and the
destination. If possible, bypass the patch panel or eliminate faulty media convertors, such as
fiber-optic-to-copper convertors.
•
Try using the cable in another port or interface to see if the problem also exists there.
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Chapter 4 Troubleshooting
Diagnosing Problems
Ethernet and Fiber Cables
Make sure that you have the correct cable type for the connection:
•
For Ethernet, use Category 3 copper cable for 10 Mb/s unshielded twisted pair (UTP) connections.
Use either Category 5, Category 5e, or Category 6 UTP for 10/100 or 10/100/1000 Mb/s
connections.
•
For fiber-optic connectors, verify that you have the correct cable for the distance and port type.
Make sure that the ports on the connected device match and that they use the same type of encoding,
optical frequency, and fiber type. For more information about cabling, see Appendix A, “Connector
•
For copper connections, determine if a crossover cable was used when a straight-through cable was
required or the reverse. Enable auto-MDIX on the switch, or replace the cable.
Link Status
Verify that both sides have link. A single broken wire or one shutdown port can cause one side to show
link, but the other side does not have link.
A link LED does not guarantee that the cable is fully functional. The cable might have encountered
physical stress that causes it to function at a marginal level. If the link light for the port does not come on:
•
•
•
•
Connect the cable from the switch to a known, good device.
Make sure that both ends of the cable are connected to the correct ports.
Verify that both devices have power.
Specifications.” for more information.
•
Look for loose connections. Sometimes a cable appears to be seated, but is not. Disconnect and then
reconnect the cable.
Transceiver Module Port Issues
Use only Cisco small form-factor (SFP) modules on the switch. Each Cisco module has an internal serial
EEPROM that is encoded with security information. This encoding provides a way for Cisco to identify
and validate that the module meets the requirements for the switch. Look for these items:
•
Bad or incorrect SFP module. Exchange the suspect module with a known, good module. Verify that
SFP modules.
•
•
Use the show interfaces privileged EXEC command to verify the port or module error-disabled,
disabled, or shutdown status. Re-enable the port if necessary.
Make sure that all you have properly cleaned and securely connected all fiber-optic connections.
Port and Interface Settings
An obvious but sometimes overlooked cause of port connectivity failure is a disabled port. Verify that
the port or interface is not disabled or for some reason powered off. If a port or interface is manually
shut down on one or the other side of the link, the link does not come up until you re-enable the port.
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Chapter 4 Troubleshooting
Diagnosing Problems
Use the show interfaces privileged EXEC command to verify the port or interface error-disabled,
disabled, or shutdown status on both sides of the connection. If necessary, re-enable the port or the
interface.
Ping the End Device
Verify the end device connection by first pinging it from the directly connected switch, and then work
your way back port by port, interface by interface, trunk by trunk, until you find the source of the
connectivity issue. Make sure that each switch can identify the end device MAC address in its
Content-Addressable Memory (CAM) table.
Spanning Tree Loops
Spanning Tree Protocol (STP) loops can cause serious performance issues that might appear to be port
or interface problems. In this situation, the switch bandwidth is used repeatedly by the same frames,
crowding out legitimate traffic.
A unidirectional link can cause loops. This occurs when the traffic that the switch sends is received by
its neighbor, but the switch does not receive the traffic that is sent from the neighbor. A broken
fiber-optic cable, other cabling, or a port issue could cause this one-way communication.
You can enable the UniDirectional Link Detection (UDLD) protocol on the switch to help identify
difficult-to-find unidirectional link problems. UDLD supports a normal mode of operation (the default)
and an aggressive mode. In normal mode, UDLD detects unidirectional links because of incorrectly
connected interfaces on fiber-optic connections. In aggressive mode, UDLD also detects unidirectional
links caused by one-way traffic on fiber-optic and twisted-pair links and by incorrectly connected
interfaces on fiber-optic links. For information about enabling UDLD on the switch, see the
“Understanding UDLD” section in the software configuration guide.
Monitor Switch Performance
Review these sections when you troubleshoot switch performance problems:
•
•
•
Speed, Duplex, and Autonegotiation
If the port statistics show a large number of alignment errors, frame check sequence (FCS), or
late-collisions errors, a speed or duplex mismatch might be the problem.
A common issue with speed and duplex occurs when the duplex settings are mismatched between two
switches, between a switch and a router, or between the switch and a workstation or server. This can
happen when you manually set the speed and duplex or because of autonegotiation issues between the
two devices.
These circumstances can result in a mismatch:
•
A manually set speed or duplex parameter is different from the manually set speed or duplex
parameter on the connected port.
•
A port is set to autonegotiate, and the connected port is set to full duplex with no autonegotiation.
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Chapter 4 Troubleshooting
Clearing the Switch IP Address and Configuration
To maximize switch performance and to ensure a link, follow one of these guidelines when you set or
change the settings for duplex and speed:
•
•
•
Let both ports autonegotiate both speed and duplex.
Manually set the speed and duplex parameters for the ports on both ends of the connection.
If a remote device does not autonegotiate, configure the duplex settings on the two ports to match.
The speed parameter can adjust itself even if the connected port does not autonegotiate.
Autonegotiation and NIC Cards
Problems sometimes occur between the switch and third-party network interface cards (NICs). By
default, the switch ports and interfaces are set to autonegotiate. It is common for devices such as laptop
computers or other devices to also be set to autonegotiate, yet sometimes autonegotiation issues occur.
To troubleshoot autonegotiation problems, try to manually set both sides of the connection. If this does
not solve the problem, the firmware or software on your NIC card might be causing the problem.
Upgrade the NIC card driver to the latest version available from the manufacturer.
Cabling Distance
If the port statistics show excessive FCS, late-collision, or alignment errors, verify that the cable distance
from the switch to the connected device meets the recommended guidelines. See the Appendix A, “Cable
and Adapter Specifications.” for cabling guidelines.
Clearing the Switch IP Address and Configuration
If you have configured a new switch with an incorrect IP address, you can clear the IP address that is
configured on the switch.
Caution
This procedure clears the IP address and all configuration information that is stored on the switch. Do
not follow this procedure unless you want to completely reconfigure the switch.
Follow these steps to return your switch to the factory default settings:
The switch LEDs begin blinking after about 2 seconds. If the switch is not configured, the LEDs
above the mode button turn green. You can omit this step and run Express Setup to configure the
switch.
2. Continue holding down the Mode button. The LEDs stop blinking after an additional 8 seconds, and
then the switch reboots.
The switch now behaves like an unconfigured switch. You can configure the switch by using Express
Setup as described in the switch getting started guide that is included with the switch.
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Chapter 4 Troubleshooting
Locating the Switch Serial Number
Locating the Switch Serial Number
If you contact Cisco Technical Assistance, you need to know the serial number of your switch. See
version command to get the serial number.
Figure 4-1
Serial Number Location on the Catalyst 2960-24PC-L, 2960-24LT-L, 2960-24TC-S, 2960-48TC-S, 2960-24TT-L,
2960-48TT-L, 2960G-24TC-L, and 2960G-48TC-L Switches
SN: XXXNNNNXXXX
Cisco 11-character label
Figure 4-2
Serial Number Location on the Catalyst 2960-24-S, 2960-24TC-S, and 2960-48TC-S Switches
SN: XXXNNNNXXXX
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Chapter 4 Troubleshooting
Locating the Switch Serial Number
Figure 4-3
Serial Number Location on the Catalyst 2960-8TC-L, Catalyst 2960G-8TC-L, and Catalyst 2960PD-8TT-L
Switches
SN: XXXNNNNXXXX
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Locating the Switch Serial Number
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A P P E N D I X
A
Connector and Cable Specifications
This appendix describes the Catalyst 2960 switch ports and the cables and adapters that you use to
connect the switch to other devices and includes these sections:
•
•
Connector Specifications
These sections describe the connectors used with the Catalyst 2960 switch:
•
•
•
•
10/100/1000 Ports
The 10/100/1000 Ethernet ports on the Catalyst 2960 switch use standard RJ-45 connectors. Figure A-1
shows the pinout.
Note
The auto-MDIX feature is enabled by default. For configuration information for this feature, see the
switch software configuration guide or the switch command reference.
Connecting to 10BASE-T- and 100BASE-TX-Compatible Devices
When connecting the ports to 10BASE-T- and 100BASE-TX-compatible devices, such as servers,
workstations, and routers, you can use a two or four twisted-pair, straight-through cable wired for
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Connector Specifications
When connecting the ports to 10BASE-T- and 100BASE-TX-compatible devices, such as switches or
repeaters, you can use a two or four twisted-pair, crossover cable. Figure A-6 shows the two twisted-pair,
You can use Category 3, 4, or 5 cabling when connecting to 10BASE-T-compatible devices. You must
use Category 5 cabling when connecting to 100BASE-TX-compatible devices.
Connecting to 1000BASE-T Devices
When connecting the ports to 1000BASE-T devices, such as servers, workstations, and routers, you must
use a four twisted-pair, Category 5, straight-through cable wired for 10BASE-T, 100BASE-TX, and
When connecting the ports to other devices, such as switches or repeaters, you must use a four
twisted-pair, Category 5 or higher crossover cable. Figure A-8 shows the crossover cable schematics.
Note
Note
Be sure to use a four twisted-pair, Category 5 cable when connecting to a 1000BASE-T-compatible
device.
Use a straight-through cable to connect two ports only when one port is designated with an X. Use a
crossover cable to connect two ports when both ports are designated with an X or when both ports do
not have an X.
Figure A-1
10/100/1000 Port Pinouts
Pin
Label
1 2 3 4 5 6 7 8
1
2
3
4
5
6
7
8
TP0+
TP0-
TP1+
TP2+
TP2-
TP1-
TP3+
TP3-
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Appendix A Connector and Cable Specifications
Connector Specifications
SFP Module Ports
The Catalyst 2960 switch uses SFP modules for fiber-optic and copper uplink ports. See the
Catalyst 2960 switch release notes for a list of supported SFP modules.
Figure A-2
Fiber-Optic SFP Module LC Connector
Warning
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into
beams or view directly with optical instruments.
Figure A-3
Copper SFP Module RJ-45 Connector
Pin
Label
1 2 3 4 5 6 7 8
1
2
3
4
5
6
7
8
TP0+
TP0-
TP1+
TP2+
TP2-
TP1-
TP3+
TP3-
Dual-Purpose Ports
The Ethernet port on a dual-purpose port uses standard RJ-45 connectors. Figure A-4 shows the pinouts.
The SFP module slot on a dual-purpose port uses SFP modules for fiber-optic and copper uplink ports.
See the Catalyst 2960 switch release notes for a list of supported SFP modules.
Note
The auto-MDIX feature is enabled by default. For configuration information for this feature, see the
switch software configuration guide or the switch command reference.
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Appendix A Connector and Cable Specifications
Cable and Adapter Specifications
Figure A-4
10/100/1000 Port Pinouts
Pin
Label
1 2 3 4 5 6 7 8
1
2
3
4
5
6
7
8
TP0+
TP0-
TP1+
TP2+
TP2-
TP1-
TP3+
TP3-
Console Port
supplied RJ-45-to-DB-9 adapter cable is used to connect the console port of the switch to a console PC.
You need to provide a RJ-45-to-DB-25 female DTE adapter if you want to connect the switch console
port to a terminal. You can order a kit (part number ACS-DSBUASYN=) containing that adapter from
Cable and Adapter Specifications
These sections describe the cables and adapters used with Catalyst 2960 switches:
•
•
•
•
SFP Module Cable Specifications
Table A-1 lists the cable specifications for the fiber-optic SFP module connections. Each port must
match the wave-length specifications on the other end of the cable, and for reliable communications, the
cable must not exceed the required cable length. Copper 1000BASE-T SFP transceivers use standard
four twisted-pair, Category 5 or greater cable at lengths up to 328 feet (100 meters).
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Cable and Adapter Specifications
Table A-1
Fiber-Optic SFP Module Port Cabling Specifications
Wavelength
(nanometers) Fiber Type Size (micron)
Core Size/Cladding Modal Bandwidth
SFP Module
(MHz/km)1
Cable Distance
100BASE-BX
(GLC-FE-100BX-D
GLC-FE-100BX-U)
1310 TX
1550 RX
SMF
G.6522
—
32,810 feet (10 km)
100BASE-FX
(GLC-GE-100FX)
1310
1310
1310
MMF
MMF
SMF
SMF
SMF
MMF
50/125
62.5/125
500
500
6,562 feet (2 km)
6,562 feet (2 km)
100BASE-FX
(GLC-FE-100FX)
50/125
62.5/125
500
500
6,562 feet (2 km)
6,562 feet (2 km)
100BASE-LX
(100BASE-LX10)
G.6522
G.6522
G.6522
—
—
—
32,810 feet (10 km)
32,810 feet (10 km)
32,810 feet (10 km)
1000BASE-BX10-D
(GLC-BX-D)
1490 TX
1310 RX
1000BASE-BX10-U
(GLC-BX-U)
1310 TX
1490 RX
1000BASE-SX
(GLC-SX-MM)
850
62.5/125
62.5/125
50/125
160
200
400
500
722 feet (220 m)
902 feet (275 m)
1640 feet (500 m)
1804 feet (550 m)
50/125
1000BASE-LX/LH
(GLC-LH-SM)
1310
1550
MMF3
62.5/125
50/125
50/125
G.6522
500
400
500
—
1804 feet (550 m)
1804 feet (550 m)
1804 feet (550 m)
32,810 feet (10 km)
SMF
SMF
1000BASE-ZX
(GLC-ZX-SM
G.6522
—
43.4 to 62 miles
(70 to 100 km)4
CWDM
1470, 1490,
1510, 1530,
1550, 1570,
1590, 1610
SMF
G.6522
—
62 miles (100 km)
1. Modal bandwidth applies only to multimode fiber.
2. A mode-field diameter/cladding diameter = 9 micrometers/125 micrometers
3. A mode-conditioning patch cord is required. Using an ordinary patch cord with MMF, 1000BASE-LX/LH SFP modules, and a short link distance
can cause transceiver saturation, resulting in an elevated bit error rate (BER). When using the LX/LH SFP module with 62.5-micron diameter MMF,
you must also install a mode-conditioning patch cord between the SFP module and the MMF cable on both the sending and receiving ends of the
link. The mode-conditioning patch cord is required for link distances greater than 984 feet (300 m).
4. 1000BASE-ZX SFP modules can send data up to 62 miles (100 km) by using dispersion-shifted SMF or low-attenuation SMF; the distance depends
on the fiber quality, the number of splices, and the connectors.
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Cable and Adapter Specifications
Two Twisted-Pair Cable Pinouts
Figure A-5 and Figure A-6 show the schematics of two twisted-pair cables for connecting to 10BASE-T-
and 100BASE-TX-compatible devices.
Figure A-5
Two Twisted-Pair Straight-Through Cable Schematic
Switch
Router or PC
3 TD+
6 TD–
3 RD+
6 RD–
1 RD+
2 RD–
1 TD+
2 TD–
Figure A-6
Two Twisted-Pair Crossover Cable Schematic
Switch
Switch
3 TD+
6 TD–
3 TD+
6 TD–
1 RD+
2 RD–
1 RD+
2 RD–
Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports
Catalyst 2960 switches.
Figure A-7
Four Twisted-Pair Straight-Through Cable Schematic for 10/100/1000 Ports
Switch
Router or PC
1 TPO+
2 TPO-
3 TP1+
6 TP1-
1 TP1+
2 TP1-
3 TPO+
6 TPO-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
4 TP3+
5 TP3-
7 TP2+
8 TP2-
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Cable and Adapter Specifications
Figure A-8
Four Twisted-Pair Crossover Cable Schematics for 10/100/1000 Ports
Switch
Switch
1 TPO+
2 TPO-
3 TP1+
6 TP1-
1 TP0+
2 TP0-
3 TP1+
6 TP1-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
4 TP2+
5 TP2-
7 TP3+
8 TP3-
Crossover Cable and Adapter Pinouts
This section describes how to identify a crossover cable and also describes the adapter pinouts.
Identifying a Crossover Cable
To identify a crossover cable, compare the two modular ends of the cable. Hold the cable ends
side-by-side, with the tab at the back. The wire connected to the pin on the outside of the left plug should
be a different color from the wire connected to the pin on the inside of the right plug. (See Figure A-9.)
Figure A-9
Identifying a Crossover Cable
Pin 1 on one connector and
pin 1 on the other connector
should be different colors.
Pin 1
Pin 1
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Cable and Adapter Specifications
Adapter Pinouts
Table A-2 lists the pinouts for the console port, the RJ-45-to-DB-9 adapter cable, and the console device.
Table A-2
Console Port Signaling Using a DB-9 Adapter
Switch
Console
Port (DTE)
RJ-45-to-DB-9
Terminal Adapter Device
Console
Signal
RTS
DB-9 Pin
Signal
CTS
DSR
RxD
GND
GND
TxD
DTR
RTS
8
6
2
5
5
3
4
7
DTR
TxD
GND
GND
RxD
DSR
CTS
Table A-3 lists the pinouts for the console port, RJ-45-to-DB-25 female DTE adapter, and the console
device.
Note
The RJ-45-to-DB-25 female DTE adapter is not supplied with the switch. You can order a kit (part number
ACS-DSBUASYN=) containing this adapter from Cisco.
Table A-3
Console Port Signaling Using a DB-25 Adapter
Switch
Console
Port (DTE)
RJ-45-to-DB-25
Terminal Adapter Device
Console
Signal
RTS
DB-25 Pin
Signal
CTS
DSR
RxD
GND
GND
TxD
DTR
RTS
5
DTR
TxD
GND
GND
RxD
DSR
CTS
6
3
7
7
2
20
4
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A P P E N D I X
B
Technical Specifications
These tables list the technical specifications for the Catalyst 2960 switches:
•
•
•
•
•
•
•
Table B-1
Environmental Specifications for All Catalyst 2960 Switches
Environmental Ranges (All)
Operating temperature
32 to 113°F (0 to 45°C)
(except for the Catalyst 2960G-8TC-L)
32 to 104°F (0 to 40°C) (only for the Catalyst 2960G-8TC-L)
–13 to 158°F (–25 to 70°C)
Storage temperature
Relative humidity
Operating altitude
Storage altitude
10 to 85% (noncondensing)
Up to 10,000 ft (3049 m)
Up to 15,000 ft (4573 m)
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Table B-2
Catalyst 2960-24-S, Catalyst 2960-24TC-S, and Catalyst 2960-48TC-S Switch
Specifications
Power Requirements
AC input voltage
100 to 240 VAC (autoranging)
1.3 to 0.8 A, 50 to 60 Hz
Power consumption
Power rating
30 W, 103 BTUs per hour
0.05 KVA
Physical Dimensions
Weight
8 lb (3.63 kg)
Dimensions (H x D x W)
1.73 x 9.3 x 17.5 in. (4.39 x 23.62 x 44.45 cm)
Table B-3
Catalyst 2960-24PC-L and Catalyst 2960-24LT-L Switch Specifications
Power Requirements
AC input voltage
100 to 240 VAC (autoranging)
8 to 4 A, 50 to 60 Hz (Catalyst 2960-24PC-L)
3 to 1.5 A, 50 to 60 Hz (Catalyst 2960-24LT-L)
DC input voltage for
RPS 2300
+12 V @11.25 A, –48 V @ 7.8 A (Catalyst 2960-24PC-L)
12 V @ 8.3 A, –48 V @ 2.7A (Catalyst 2960-24LT-L)
Power consumption1
100 W, 341 BTUs per hour (Catalyst 2960-24PC-L)
51 W, 174 BTUs per hour (Catalyst 2960-24LT-L)
Power rating
0.470 KVA (Catalyst 2960-24PC-L)
0.175 KVA (Catalyst 2960-24LT-L)
Power over Ethernet
15.4 W per port maximum, 370 W switch maximum (Catalyst 2960-24PC-L switch)
15.4 W per port maximum, 124 W switch maximum (Catalyst 2960-24LT-L switch)
Physical Dimensions
Weight
12 lb (5.44 kg) (Catalyst 2960-24PC-L switch)
10 lb (4.54 kg) (Catalyst 2960-24LT-L switch)
Dimensions (H x D x W)
1.73 x 13 x 17.5 in. (4.39 x 33.02 x 44.45 cm)
1. The power consumption values are for the switch input power.
Table B-4
Catalyst 2960-24TC-L and Catalyst 2960-24TT-L Switch Specifications
Power Requirements
AC input voltage
100 to 240 VAC (autoranging)
1.3 to 0.8 A, 50 to 60 Hz
DC input voltage for RPS 2300
DC input voltage for RPS 675
Power consumption
+12 V @5 A
+12 V @5 A
30 W, 103 BTUs per hour
0.05 KVA
Power rating
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Appendix B Technical Specifications
Table B-4
Catalyst 2960-24TC-L and Catalyst 2960-24TT-L Switch Specifications (continued)
Physical Dimensions
Weight
Dimensions (H x D x W)
8 lb (3.63 kg)
1.73 x 9.3 x 17.5 in. (4.39 x 23.62 x 44.45 cm)
Table B-5
Catalyst 2960-48TC-L and Catalyst 2960-48TT-L Switch Specifications
Power Requirements
AC input voltage
100 to 240 VAC (autoranging)
1.3 to 0.8 A, 50 to 60 Hz
DC input voltage for RPS 2300
DC input voltage for RPS 675
Power consumption
Power rating
+12 V @5 A
+12 V @5 A
45 W, 154 BTUs per hour
0.075 KVA
Physical Dimensions
Weight
8 lb (3.63 kg)
Dimensions (H x D x W)
1.73 x 9.3 x 17.5 in. (4.39 x 23.62 x 44.45 cm)
Table B-6
Catalyst 2960G-24TC-L and Catalyst 2960G-48TC-L Switch Specifications
Power Requirements
AC input voltage
100 to 240 VAC (autoranging)
3 to 1.5 A, 50 to 60 Hz
DC input voltage for RPS 2300
DC input voltage for RPS 675
Power consumption
+12 V @10.5 A
+12 V @10.5 A
75 W, 256 BTUs per hour (Catalyst 2960G-24TC-L)
140 W, 477 BTUs per hour (Catalyst 2960G-48TC-L)
Power rating
0.075 KVA (Catalyst 2960G-24TC-L)
0.14 KVA (Catalyst 2960G-48TC-L)
Physical Dimensions
Weight
10 lb (4.54 kg) (Catalyst 2960G-24TC-L)
12 lb (5.44 kg) (Catalyst 2960G-48TC-L)
Dimensions (H x D x W)
1.73 x 12.9 x 17.5 in. (4.39 x 32.76 x 44.45 cm)
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Appendix B Technical Specifications
Table B-7
Catalyst 2960-8TC-L, Catalyst 2960G-8TC-L, and Catalyst 2960PD-8TT-L Switch
Specifications
Power Requirements
AC input voltage
100 to 240 VAC (autoranging)
0.5 to 0.25 A, 50 to 60 Hz (Catalyst 2960-8TC-L)
0.8 to 0.4 A, 50 to 60 Hz (Catalyst 2960G-8TC-L)
Unspecified when AC power adapter installed (Catalyst 2960PD-8TT-L)
48 VDC, 0.3A (Catalyst 2960PD-8TT-L)
DC input voltage
20 W, 68 BTUs per hour (Catalyst 2960-8TC-L)
30 W, 102 BTUs per hour (Catalyst 2960G-8TC-L)
11W, 38 BTUs per hour (Catalyst 2960PD-8TT-L1)
Power consumption
0.035 KVA (Catalyst 2960-8TC-L and Catalyst 2960PD-8TT-L)
0.05 KVA (Catalyst 2960G-8TC-L)
Power rating
11 W (Catalyst 2960PD-8TT-L)
Physical Dimensions
Weight
3 lb (1.4 kg)
Dimensions (H x D x W) 1.73 x 6.4 x 10.6 in. (4.4 x 16.3 x 26.9 cm) (Catalyst 2960-8TC-L and
Catalyst 2960PD-8TT-L)
1.73 x 8.1 x 10.6 in. (4.4 x 20.5 x 26.9 cm) (Catalyst 2960G-8TC-L)
1. The power consumption for the Catalyst 2960PD-8TT-L switch is for the switch system and does not refer to power
consumption with the optional AC power adapter installed.
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A P P E N D I X
C
Configuring the Switch with the CLI-Based Setup
Program
This appendix provides a command-line interface (CLI)-based setup procedure for a standalone switch.
For product overview information, see Chapter 1, “Product Overview.”
Before you connect the switch to a power source, review the safety warnings in Chapter 2, “Switch
For installation procedures for mounting your switch, connecting to the switch ports, or connecting to
the small form-factor pluggable (SFP) modules, see Chapter 2, “Switch Installation (24- and 48-Port
These steps describe how to do an installation:
Accessing the CLI
For an unconfigured switch, you can access the CLI through Express Setup or through the console port.
Accessing the CLI Through Express Setup
You can access the CLI on an unconfigured switch by placing the switch in Express Setup mode and then
connecting an Ethernet port of the switch to the Ethernet port of your PC or workstation. To put the
switch into Express Setup mode, follow the steps described in the Catalyst 2960 Switch Getting Started
Guide for powering on the switch and using Express Setup.
After the switch is in Express Setup mode, open a Telnet session to the switch by using the IP address
10.0.0.1. Enter the setup user EXEC command. See these sections in this chapter to configure the switch
by using the CLI:
•
•
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Appendix C Configuring the Switch with the CLI-Based Setup Program
Connecting to the Console Port
After you have entered the configuration information for the switch, save it to flash memory by using
the write memory privileged EXEC command.
Note
While in Express Setup mode, the IP address 10.0.0.1 remains active on the switch until you enter the
write memory command. You lose the Telnet connection after entering the write memory command.
For more information about using the CLI, refer to the command reference for this release.
Accessing the CLI Through the Console Port
You can access the CLI on a configured or unconfigured switch by connecting the console port of the
switch to the serial port on your PC or workstation and accessing the switch through a Telnet session.
To access the switch through the console port, follow these steps:
•
•
•
•
Note
Note
You need to provide the Category 5 or higher straight-through cables to connect the switch ports to other
Ethernet devices.
The auto-MDIX feature is enabled by default. For configuration information for this feature, see the
switch software configuration guide or the switch command reference.
Connecting to the Console Port
You can use the console port to perform the initial configuration. To connect the switch console port to
a PC, use the supplied RJ-45-to-DB-9 adapter cable.
Follow these steps to connect the PC or terminal to the switch:
Step 1
Using the supplied RJ-45-to-DB-9 adapter cable, insert the RJ-45 connector into the console port on the
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Appendix C Configuring the Switch with the CLI-Based Setup Program
Starting the Terminal Emulation Software
Figure C-1
Connecting a Switch to a PC
1
C
O
N
S
O
L
E
3
2
1
Catalyst 2960 switch
Power cord
3
RJ-45-to-DB-9 adapter cable
2
Step 2
Attach the DB-9 female DTE of the adapter cable to a PC serial port, or attach an appropriate adapter to
the terminal.
Starting the Terminal Emulation Software
Before you power on the switch, start the terminal emulation session so that you can see the output
display from the power-on self-test (POST). The terminal-emulation software—frequently a PC
application such as Hyperterminal or Procomm Plus—makes communication between the switch and
your PC or terminal possible.
Step 1
Step 2
Step 3
Start the terminal-emulation program and open a session if you are using a PC or terminal.
Start a terminal-emulation session.
Configure the baud rate and character format of the PC or terminal to match these console port default
characteristics:
•
•
•
•
•
9600 baud
8 data bits
1 stop bit
No parity
None (flow control)
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Appendix C Configuring the Switch with the CLI-Based Setup Program
Connecting to a Power Source
Connecting to a Power Source
Follow these steps to connect to a power source:
Step 1
Step 2
Connect one end of the supplied AC power cord to the power connector on a switch rear panel. See
Connect the other end of the power cable to a grounded AC outlet.
Note
If you are connecting the switch to a Cisco redundant power system (RPS), refer to the
documentation that shipped with your RPS.
As the switch powers on, it begins the power-on self test (POST), a series of tests that runs automatically
to ensure that the switch functions properly. POST lasts approximately 1 minute. When the switch begins
POST, the System, RPS, Status, Duplex, and Speed LEDs turn green. The System LED blinks green, and
the other LEDs remain solid green.
When the POST completes successfully, the System LED remains green. The RPS LED remains green
for some time and then reflects the switch operating status. The other LEDs turn off and then reflect the
switch operating status. If a switch fails POST, the System LED turns amber.
POST failures are usually fatal. Call Cisco technical support representative if your switch fails POST.
If you started the terminal emulation program before you powered on your switch, the PC or terminal
displays the bootloader sequence. You need to press Enter to display the setup program prompt.
Entering the Initial Configuration Information
To set up the switch, you need to complete the setup program, which runs automatically after the switch
is powered up. You must assign an IP address and other configuration information necessary for the
switch to communicate with the local routers and the Internet. This information is also required if you
plan to use the Network Assistant to configure and manage the switch.
IP Settings
You need this information from your network administrator before you complete the setup program:
•
•
•
•
•
•
Switch IP address
Subnet mask (IP netmask)
Default gateway (router)
Enable secret password
Enable password
Telnet password
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Appendix C Configuring the Switch with the CLI-Based Setup Program
Entering the Initial Configuration Information
Completing the Setup Program
Follow these steps to complete the setup program and to create an initial configuration for the switch:
Step 1
Enter Yes at these two prompts.
Would you like to enter the initial configuration dialog? [yes/no]: yes
At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.
Basic management setup configures only enough connectivity
for management of the system, extended setup will ask you
to configure each interface on the system.
Would you like to enter basic management setup? [yes/no]: yes
Step 2
Step 3
Enter a host name for the switch, and press Return.
On a command switch, the host name is limited to 28 characters; on a member switch to 31 characters.
Do not use -n, where n is a number, as the last character in a host name for any switch.
Enter host name [Switch]: host_name
Enter an enable secret password, and press Return.
The password can be from 1 to 25 alphanumeric characters, can start with a number, is case sensitive,
allows spaces, but ignores leading spaces. The secret password is encrypted and the enable password is
in plain text.
Enter enable secret: secret_password
Step 4
Step 5
Enter an enable password, and press Return.
Enter enable password: enable_password
Enter a virtual terminal (Telnet) password, and press Return.
The password can be from 1 to 25 alphanumeric characters, is case sensitive, allows spaces, but ignores
leading spaces.
Enter virtual terminal password: terminal-password
Step 6
(Optional) Configure Simple Network Management Protocol (SNMP) by responding to the prompts. You
can also configure SNMP later through the CLI, the device manager, or the Network Assistant
application. To configure SNMP later, enter no.
Configure SNMP Network Management? [no]: no
Step 7
Step 8
Enter the interface name (physical interface or VLAN name) of the interface that connects to the
management network, and press Return. For this release, always use vlan1 as that interface.
Enter interface name used to connect to the
management network from the above interface summary: vlan1
Configure the interface by entering the switch IP address and subnet mask and pressing Return. The IP
address and subnet masks shown below are examples.
Configuring interface vlan1:
Configure IP on this interface? [yes]: yes
IP address for this interface: 10.4.120.106
Subnet mask for this interface [255.0.0.0]: 255.0.0.0
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Appendix C Configuring the Switch with the CLI-Based Setup Program
Entering the Initial Configuration Information
Step 9
Enter Y to configure the switch as the cluster command switch. Enter N to configure it as a member
switch or as a standalone switch.
If you enter N, the switch appears as a candidate switch in the Network Assistant GUI. You can configure
the switch as a command switch later through the CLI, the device manager, or the Network Assistant
application. To configure it later, enter no.
Would you like to enable as a cluster command switch? [yes/no]: no
You have now completed the initial configuration of the switch, and the switch displays its initial
configuration. This is an example of output that appears:
The following configuration command script was created:
hostname switch1
enable secret 5 $1$Ulq8$DlA/OiaEbl90WcBPd9cOn1
enable password enable_password
line vty 0 15
password terminal-password
no snmp-server
!
no ip routing
!
interface Vlan1
no shutdown
ip address 10.4.120.106 255.0.0.0
!
interface FastEthernet0/1
!
interface FastEthernet0/2
interface FastEthernet0/3
!
...<output abbreviated>
!
interface GigabitEthernet0/28
!
end
Step 10 These choices appear:
[0] Go to the IOS command prompt without saving this config.
[1] Return back to the setup without saving this config.
[2] Save this configuration to nvram and exit.
If you want to save the configuration and use it the next time the switch reboots, save it
in NVRAM by selecting option 2.
Enter your selection [2]:2
Make your selection, and press Return.
After you complete the setup program, the switch can run the default configuration that you created. If
you want to change this configuration or want to perform other management tasks, use one of these tools:
•
•
Command-line interface (CLI)
Network Assistant (for one or more switches)
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Appendix C Configuring the Switch with the CLI-Based Setup Program
Entering the Initial Configuration Information
To use the CLI, enter commands at the Switch> prompt through the console port by using a terminal
emulation program or through the network by using Telnet. For configuration information, see the switch
software configuration guide or the switch command reference.
To use the Network Assistant, see the Getting Started with Cisco Network Assistant guide on Cisco.com.
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Entering the Initial Configuration Information
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I N D E X
Numerics
B
10/100/1000 ports
brackets
described 1-9
illustrated 1-3
C
PoE 1-9
cables
crossover
identifying A-7
A
AC power
using A-2
connector 1-18
SFP modules
fiber-optic A-4
AC power adapter for Catalyst 2960PD-8TT-L
switch 1-11
straight-through
adapter pinouts, terminal
using A-1
RJ-45-to-DB-25 A-8
RJ-45-to-DB-9 A-8
cabling
pinouts A-6
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Index
Cisco RPS
D
device manager
CiscoView 1-21
described 1-20
CLI
dual-purpose ports
described 1-21
described 1-11
command-line interface
LEDs 1-17
connecting
connectors and cables
E
Ethernet cable warning
dual-purpose A-3
console port
F
described 1-19
features 1-1
front panel
crossover cable, connecting to 1000BASE-T SFP module
ports 2-21
crossover cable pinout, four twisted-pair, 1000BASE-T
ports A-7
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Index
G
L
LEDs
duplex 1-14
H
interpreting 1-14, 1-16
PoE 1-15
RPS 1-13
I
speed 1-14
installation
STATUS 1-14
mounting
system 1-13
M
on a wall with rack-mount brackets (8-port
switches) 3-16
mounting brackets
rack-mount 2-11, 3-16
N
Network Assistant
described 1-20
J
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Index
POST
O
power
P
pinouts
adapters A-7
power-on self test
crossover cables
Power over Ethernet
power supply
straight-through cables
procedures
PoE
LED 1-15
R
rear panel
port modes
changing 1-12
LEDs 1-14
ports
redundant power supply
dual-purpose 1-11
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Index
RPS
T
connector 1-18
This 2-3
LED 1-13
S
SFP modules
cables A-4
POST 4-1
connectors A-3
described 1-10
shelf-mounting 2-15, 3-6
Simple Network Management Protocol
W
small form-factor pluggable
wall-mounting 2-12, 3-16
warnings
specifications B-1
straight-through cable pinout
installation 2-2, 3-1
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